Black Belt Certification Exam

1. Question

A Cause and Effect Diagram is used to identify, organize and graphically display the potential causes of a specific effect or event?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

2. Question

Cause and Effect Diagram provides quantitative analysis of correlation between each cause and the effect.

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

3. Question

Cp considers the within-subgroup standard deviation and Pp considers the total standard deviation from the sample data?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

4. Question

Cp, and Pp take both total variation and the average of the process into consideration when measuring the process capability?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

5. Question

Cpk measures the process’s potential capability to meet the two-sided specifications. It doesn’t take the process average into consideration?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

6. Question

If Kappa is equal to 0, the measurement system is excellent?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

7. Question

Median is the average of a set of data?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

8. Question

Median is the middle value in a set of data?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

9. Question

Mode is the value in a data set that occurs most frequently?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

10. Question

SIPOC is an acronym using which includes the following words except?

Process

Correct Incorrect Correct answer

Primary

Correct Incorrect Correct answer

Suppliers

Correct Incorrect Correct answer

Customer

Correct Incorrect Correct answer

11. Question

Standard Deviation is a measure that describes how far the data points spread away from the mean?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

12. Question

Which of the following is not a common source of variation in most measurement systems?

Part to Part Variation

Correct Incorrect Correct answer

Stability

Correct Incorrect Correct answer

Repeatability

Correct Incorrect Correct answer

Reproducibility

Correct Incorrect Correct answer

13. Question

Which of the following items is not related to the accuracy of the measurement system?

Bias

Correct Incorrect Correct answer

Linearity

Correct Incorrect Correct answer

Reproducibility

Correct Incorrect Correct answer

Stability

Correct Incorrect Correct answer

14. Question

Which of the following measurements is NOT a process capability index?

Cp

Correct Incorrect Correct answer

Cpk

Correct Incorrect Correct answer

Kappa

Correct Incorrect Correct answer

Percent Defectives

Correct Incorrect Correct answer

15. Question

__________ is how consistent measurements deliver the same values under the same circumstances?

Precision

Correct Incorrect Correct answer

Reproducibility

Correct Incorrect Correct answer

Non Bias

Correct Incorrect Correct answer

16. Question

The risk prioritization number is the product of the ______ score, _____ score and ______ score?

Severity, Occurrence, Detection

Correct Incorrect Correct answer

Severity, Occurrence, Prevention

Correct Incorrect Correct answer

Mean, Median, Mode

Correct Incorrect Correct answer

17. Question

Process ________ measures how well the process performs to meet given customer specification limits?

Capability

Correct Incorrect Correct answer

Stability

Correct Incorrect Correct answer

Variation

Correct Incorrect Correct answer

18. Question

__________ is the difference between the observed value and the true value of a measurement?

Bias

Correct Incorrect Correct answer

Precision

Correct Incorrect Correct answer

Stability

Correct Incorrect Correct answer

Capability

Correct Incorrect Correct answer

19. Question

______ should be used when trying to understand the links between customers, process steps and process outputs

SIPOC

Correct Incorrect Correct answer

FMEA

Correct Incorrect Correct answer

Fishbone

Correct Incorrect Correct answer

Thought Map

Correct Incorrect Correct answer

20. Question

For the normal distribution, about _____% of the data fall within +/- 2 standard deviation from the mean?

95

Correct Incorrect Correct answer

67

Correct Incorrect Correct answer

99

Correct Incorrect Correct answer

21. Question

A ________ is a graphical tool to present the distribution of the data

Histogram

Correct Incorrect Correct answer

Multi-Vari Chart

Correct Incorrect Correct answer

Box Plot

Correct Incorrect Correct answer

22. Question

Process stability is a prerequisite for process capability analysis?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

23. Question

___________ is an analysis technique to identify, evaluate and prioritize a potential deficiency in a process so that the project team can design action plans to reduce the probability of the failure or deficiency from occurring?

FMEA

Correct Incorrect Correct answer

Process Mapping

Correct Incorrect Correct answer

Cause and Effect

Correct Incorrect Correct answer

24. Question

______________ is applied to “infer” the characteristics or relationships of the populations from which the data are collected?

Inferential Statistics

Correct Incorrect Correct answer

Descriptive Statistics

Correct Incorrect Correct answer

Applied Statistics

Correct Incorrect Correct answer

25. Question

A ________ is a graphical representation of a process flow

Process Map

Correct Incorrect Correct answer

Primary Metric

Correct Incorrect Correct answer

Control Chart

Correct Incorrect Correct answer

26. Question

_________is applied to describe the main characteristics of a collection of data?

Descriptive Statistics

Correct Incorrect Correct answer

Inferential Statistics

Correct Incorrect Correct answer

27. Question

In a Variable Gage R and R, the acceptable % contribution of variation attributable to Repeatability and Reproducibility should be less than _____%

10

Correct Incorrect Correct answer

30

Correct Incorrect Correct answer

1

Correct Incorrect Correct answer

90

Correct Incorrect Correct answer

28. Question

How might you display central location on a nominal scale?

Median

Correct Incorrect Correct answer

Mode

Correct Incorrect Correct answer

Mean

Correct Incorrect Correct answer

29. Question

The interquartile range is NOT which of the following?

measure of the middle 50% of the data set

Correct Incorrect Correct answer

The value that exceeds at least 75% of the data set

Correct Incorrect Correct answer

The difference between the 75th percentile point and the 25th percentile point

Correct Incorrect Correct answer

30. Question

Which of the following tools did Kaoru Ishikawa invent?

Ishikawa diagram

Correct Incorrect Correct answer

Cause and Effect diagram

Correct Incorrect Correct answer

Fishbone diagram

Correct Incorrect Correct answer

All of them

Correct Incorrect Correct answer

31. Question

Which are not continuous data?

Time

Correct Incorrect Correct answer

Money

Correct Incorrect Correct answer

Weight

Correct Incorrect Correct answer

Length

Correct Incorrect Correct answer

32. Question

What are Discrete Data?

Weight

Correct Incorrect Correct answer

Height

Correct Incorrect Correct answer

Yes/No/Sometimes

Correct Incorrect Correct answer

33. Question

What type of data do we prefer?

Continuous

Correct Incorrect Correct answer

Attribute

Correct Incorrect Correct answer

34. Question

How do we summarize discrete data?

Counts and proportion

Correct Incorrect Correct answer

Center, Location and Spread

Correct Incorrect Correct answer

35. Question

How do we summarize continuous data?

Center, Location, Range, Spread etc.

Correct Incorrect Correct answer

Counts and proportion

Correct Incorrect Correct answer

36. Question

What is the middle value of a set of data?

Mean

Correct Incorrect Correct answer

Median

Correct Incorrect Correct answer

Mode

Correct Incorrect Correct answer

37. Question

How is variance calculated?

Max(data)-Min(data)

Correct Incorrect Correct answer

The average squared distance of each data point from the mean

Correct Incorrect Correct answer

Square root of s2

Correct Incorrect Correct answer

+/- 3S

Correct Incorrect Correct answer

38. Question

What do we need to know to completely describe a normal distribution?

Mean and Variance or Standard Deviation

Correct Incorrect Correct answer

Median and Variance or Standard Deviation

Correct Incorrect Correct answer

Median and Range

Correct Incorrect Correct answer

Variance and Standard Deviation

Correct Incorrect Correct answer

39. Question

Which of the following is not an intended learning outcome of an MSA?

Is the measurement system stable over time?

Correct Incorrect Correct answer

Is the measurement system correlated with process outputs

Correct Incorrect Correct answer

How big is the measurement system variability?

Correct Incorrect Correct answer

What are the sources of measurement system variability?

Correct Incorrect Correct answer

40. Question

What is Bias?

The difference between the observed value and the true value

Correct Incorrect Correct answer

The squared average difference between the observed values and the true range

Correct Incorrect Correct answer

Sigma

Correct Incorrect Correct answer

41. Question

Performance within the Upper Specification Limit (USL) and the Lower Specification Limit (LSL) will make a customer satisfied?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

42. Question

An estimate of the probability of an event occurring depending on the standard deviation from the Mean is based on?

Pareto's Rule

Correct Incorrect Correct answer

Shewhart Principle

Correct Incorrect Correct answer

Mean/Mode Spread

Correct Incorrect Correct answer

Empirical Rule

Correct Incorrect Correct answer

43. Question

The Cp for a process with an average of 100 and a standard deviation (within) of 12 and upper and lower specification limits of 114 and 90 would be?

0.67

Correct Incorrect Correct answer

2

Correct Incorrect Correct answer

1.3

Correct Incorrect Correct answer

0.33

Correct Incorrect Correct answer

44. Question

The Cpk for a process with an average of 100 and a standard deviation (within) of 2 with upper and lower specification limits of 114 and 94 would be?

1

Correct Incorrect Correct answer

2.3

Correct Incorrect Correct answer

1.67

Correct Incorrect Correct answer

45. Question

A P-chart might be used to display the rate of defectives for this type of capability analysis?

Continuous

Correct Incorrect Correct answer

Attribute

Correct Incorrect Correct answer

Poisson

Correct Incorrect Correct answer

Stability

Correct Incorrect Correct answer

46. Question

What is the difference between Cp and Cpk?

Cp takes into account where the mean of the sample is relative to the specification limits

Correct Incorrect Correct answer

Cp takes into account the closeness of the mean to the "target"

Correct Incorrect Correct answer

Cpk takes into account where the mean of the sample is relative to the specification limits

Correct Incorrect Correct answer

Cpk only considers process variation relative to the spread of the USL and LSL

Correct Incorrect Correct answer

47. Question

How many factors are used to calculate RPN?

1

Correct Incorrect Correct answer

2

Correct Incorrect Correct answer

3

Correct Incorrect Correct answer

4

Correct Incorrect Correct answer

48. Question

In an MSA, total variability is from

Part to Part variation only

Correct Incorrect Correct answer

Reproducibility

Correct Incorrect Correct answer

Repeatability

Correct Incorrect Correct answer

Reproducibility + Repeatability + Parts

Correct Incorrect Correct answer

49. Question

If extreme outliers exist in a dataset, this would warrant the use of __________ to illustrate the center location.

Mean

Correct Incorrect Correct answer

Median

Correct Incorrect Correct answer

Mode

Correct Incorrect Correct answer

50. Question

Can you add standard deviations?

Yes

Correct Incorrect Correct answer

No

Correct Incorrect Correct answer

51. Question

Can you add variance?

Yes

Correct Incorrect Correct answer

No

Correct Incorrect Correct answer

52. Question

Variation of the outputs of a process refers to how broadly distributed the results are relative to the average.

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

53. Question

Which tool has as its objective as the identification of various potential causes or factors influencing a process output?

Fishbone Diagram

Correct Incorrect Correct answer

FMEA

Correct Incorrect Correct answer

Pareto Chart

Correct Incorrect Correct answer

Impact Study

Correct Incorrect Correct answer

54. Question

Early in a LSS project a Belt may assemble several people familiar with the process to identify various ways something could fail and what problems that failure would cause. Which tool would the belt use for this?

MSA

Correct Incorrect Correct answer

FMEA

Correct Incorrect Correct answer

X-Y Diagram

Correct Incorrect Correct answer

SIPOC

Correct Incorrect Correct answer

55. Question

Which of the following is not an example of continuous data?

The car was 15 min late

Correct Incorrect Correct answer

The container held 44 liters

Correct Incorrect Correct answer

15 out of 47 people left the bus

Correct Incorrect Correct answer

56. Question

The difference between the largest number of a data set and the smallest is called the_______?

Variance

Correct Incorrect Correct answer

Median

Correct Incorrect Correct answer

Range

Correct Incorrect Correct answer

Mode

Correct Incorrect Correct answer

57. Question

In a Measurement System, _______________ is a measure of how tightly grouped a set of data is while ________________is a measure of how close to a target a set of data is.

Precision, Centeredness

Correct Incorrect Correct answer

Accuracy, Precision

Correct Incorrect Correct answer

Accuracy, Tightness

Correct Incorrect Correct answer

Precision, Accuracy

Correct Incorrect Correct answer

58. Question

Capability Analysis is a measurement of the ability of the process to meet specified requirements.

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

59. Question

For us to determine the performance of our process at the beginning of a LSS project we must gather data on its long-term performance in an “as-is” condition. This is commonly referred to as ______________?

Existing Condition

Correct Incorrect Correct answer

Process Baseline

Correct Incorrect Correct answer

Original Data

Correct Incorrect Correct answer

Pre-Project Data

Correct Incorrect Correct answer

60. Question

Stability in an MSA is the consistency of measurements of the same objects over time?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

61. Question

SIPOC stands for Suppliers, _______, Process, Output and Customers

Inventory

Correct Incorrect Correct answer

Investments

Correct Incorrect Correct answer

Inputs

Correct Incorrect Correct answer

Indicators

Correct Incorrect Correct answer

62. Question

With Measurement System Analysis, we are concerned with Precision and _______ of the data to be collected.

Sensitivity

Correct Incorrect Correct answer

Reliability

Correct Incorrect Correct answer

Accuracy

Correct Incorrect Correct answer

Variability

Correct Incorrect Correct answer

63. Question

The Mode is the least frequently occurring value in a distribution of data.

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

64. Question

One of the primary objectives of constructing an X-Y Matrix is to separate the vital few X’s from the trivial many.

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

65. Question

If a set of data is very similar in value from point to point yet far off the mark relative to a given target value, this data could be said to be…

Precise but not accurate

Correct Incorrect Correct answer

Accurate but not precise

Correct Incorrect Correct answer

Accurate but not distributed

Correct Incorrect Correct answer

Precise but skewed

Correct Incorrect Correct answer

66. Question

Stability, Bias and Linearity define the __________ of a Measurement System

Sensitivity

Correct Incorrect Correct answer

Repeatability

Correct Incorrect Correct answer

Accuracy

Correct Incorrect Correct answer

Precision

Correct Incorrect Correct answer

67. Question

Deviations of measured values over time from the true value is known as ________?

Bias

Correct Incorrect Correct answer

Linearity

Correct Incorrect Correct answer

Repeatability

Correct Incorrect Correct answer

Stability

Correct Incorrect Correct answer

68. Question

Variation in measurements made by different appraisers using the same measuring instrument when measuring identical objects is referred to as?

Reproducibility

Correct Incorrect Correct answer

Bias

Correct Incorrect Correct answer

Repeatability

Correct Incorrect Correct answer

Linearity

Correct Incorrect Correct answer

69. Question

The SIPOC provides all the following benefits EXCEPT:

Providing a framework applicable to the assessment of processes

Correct Incorrect Correct answer

Identifying key drivers to outputs

Correct Incorrect Correct answer

Displaying cross-function activities in simple terms

Correct Incorrect Correct answer

Helping maintain the big business picture

Correct Incorrect Correct answer

70. Question

As a standard for a process to be at the 6 Sigma quality level, it must have?

Cp and Cpk >2

Correct Incorrect Correct answer

Cp and Cpk > 1.5

Correct Incorrect Correct answer

Cp >1.5 and Cpk >2.0

Correct Incorrect Correct answer

Cp >2.0 and Cpk >1.5

Correct Incorrect Correct answer

71. Question

Which of the following is the one that is not part of the 7 deadly Muda?

Defects

Correct Incorrect Correct answer

Over-Production

Correct Incorrect Correct answer

Waiting

Correct Incorrect Correct answer

Transportation

Correct Incorrect Correct answer

72. Question

DPU is calculated by dividing the number of defects by the number of units

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

73. Question

Nominal Data are discrete and rank ordered?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

74. Question

For the normal distribution, about _____% of the data fall within +/- 1 standard deviation from the mean?

95

Correct Incorrect Correct answer

68

Correct Incorrect Correct answer

99

Correct Incorrect Correct answer

75. Question

Reproducibility evaluates whether the same appraiser can obtain the same value multiple times when measuring the same object using the same equipment under the same environment.

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

76. Question

Being stable does not guarantee a process to be capable. However, being stable is a prerequisite to determine whether a process is capable.

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

77. Question

A Pp of greater than 1 suggests..

Total process variation is greater than the width between the USL and LSL

Correct Incorrect Correct answer

Total process variation is less than the width between the USL and LSL

Correct Incorrect Correct answer

78. Question

A Pp of less than 1 suggests..

Total process variation is greater than the width between the USL and LSL

Correct Incorrect Correct answer

Total process variation is less than the width between the USL and LSL

Correct Incorrect Correct answer

79. Question

Mood’s median is more robust to outliers and is an alternative to Kruskal-Wallis?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

80. Question

Which of the following is not a correct combination of accurate Gage R and R interpretations?

An Acceptable Gage R and R will have %Study Var of 10% or less, %Contribution of 1% or less and distinct categories of 5 or more.

Correct Incorrect Correct answer

An Acceptable Gage R and R will have %Contribution of 10% or less, %Study Var of 1% or less and distinct categories of 5 or more.

Correct Incorrect Correct answer

An Unacceptable Gage R and R will have %Study Var of 30% or greater, %Contribution of 10% or greater and distinct categories of fewer than 5.

Correct Incorrect Correct answer

81. Question

If the correlation coefficient of two variables is zero, the two variables are independent?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

82. Question

Correlation implies causation?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

83. Question

R2 measures the proportion of variability in the data which can be explained by the model?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

84. Question

In a multiple linear regression analysis, the p-values of the insignificant predictors are the ones that are smaller than the alpha level?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

85. Question

When eliminating insignificant variables from a multiple linear regression model, we should remove all insignificant variables at the same time?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

86. Question

Multicollinearity is the situation when two or more independent variables in a multiple regression model are correlated with each other?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

87. Question

Replication in DOE increases the total degrees of freedom?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

88. Question

Fractional factorial experiments require fewer resources and runs than full factorial experiments?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

89. Question

Which of the following situations does NOT indicate that the simple linear regression model is statistically significant?

F-statistic of ANOVA is greater than the critical statistic

Correct Incorrect Correct answer

F-statistic of ANOVA is smaller than the critical statistic

Correct Incorrect Correct answer

p-value of the F-test of ANOVA is lower than the alpha level

Correct Incorrect Correct answer

correlation coefficient between the dependent and independent variable is close to 1

Correct Incorrect Correct answer

90. Question

What is the total degrees of freedom of a simple linear regression model built using 25 data points?

25

Correct Incorrect Correct answer

24

Correct Incorrect Correct answer

1

Correct Incorrect Correct answer

0

Correct Incorrect Correct answer

91. Question

Which of the following assumptions is NOT required to ensure the reliability of the linear regression model?

The errors are normally distributed with mean equal to zero

Correct Incorrect Correct answer

The errors are independent

Correct Incorrect Correct answer

The errors have a constant variance

Correct Incorrect Correct answer

The underlying population relationship is non-linear

Correct Incorrect Correct answer

92. Question

In a two-level full factorial DOE with four factors, how many runs should there be?

4

Correct Incorrect Correct answer

8

Correct Incorrect Correct answer

16

Correct Incorrect Correct answer

2

Correct Incorrect Correct answer

93. Question

In an orthogonal design, the sum of products for each run should equal zero?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

94. Question

What is the resolution of a 23-1 DOE?

Resolution III

Correct Incorrect Correct answer

Resolution IV

Correct Incorrect Correct answer

Resolution V

Correct Incorrect Correct answer

95. Question

Pearson’s correlation coefficient measures both linear and non-linear relationship between two variables?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

96. Question

In a resolution III design, the main effects are confounded with?

2 way interaction

Correct Incorrect Correct answer

3 way interactions

Correct Incorrect Correct answer

4 way interactions

Correct Incorrect Correct answer

97. Question

A correlation coefficient of 0.00 means there is absolutely no relationship?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

98. Question

Which of the following correlation coefficients best represents a strong positive linear relationship?

r= 0.99

Correct Incorrect Correct answer

r = -0.99

Correct Incorrect Correct answer

r = 0.61

Correct Incorrect Correct answer

r = -0.89

Correct Incorrect Correct answer

99. Question

Which of the following correlation coefficients best represents a strong inverse linear relationship?

r= 0.99

Correct Incorrect Correct answer

r = -0.99

Correct Incorrect Correct answer

r = 0.61

Correct Incorrect Correct answer

r = -0.59

Correct Incorrect Correct answer

100. Question

Which of the following correlation coefficients best represents a moderate positive linear relationship?

r= 0.99

Correct Incorrect Correct answer

r = -0.99

Correct Incorrect Correct answer

r = 0.61

Correct Incorrect Correct answer

r = -0.59

Correct Incorrect Correct answer

101. Question

Which of the following correlation coefficients best represents the absence of a linear relationship?

r= 0.99

Correct Incorrect Correct answer

r = -0.99

Correct Incorrect Correct answer

r = 0.61

Correct Incorrect Correct answer

r = 1.0

Correct Incorrect Correct answer

102. Question

Which of the following correlation coefficients do not represent a perfect linear relationship?

r = -1.0

Correct Incorrect Correct answer

r = 0.00

Correct Incorrect Correct answer

r = 1.0

Correct Incorrect Correct answer

103. Question

Which of the following is a way in which you might deal with multicollinearity?

Increase the sample size

Correct Incorrect Correct answer

Decrease the sample size

Correct Incorrect Correct answer

Remove the variable with high VIF

Correct Incorrect Correct answer

Remove the variable with low VIF

Correct Incorrect Correct answer

104. Question

Would increasing the sample size be an effective way to deal multicollinearity?

Yes

Correct Incorrect Correct answer

No

Correct Incorrect Correct answer

105. Question

If VIF ≥ 10, there is no multicollinearity?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

106. Question

If VIF = 1, there is no multicollinearity?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

107. Question

Experiments are passive studies in which historical data are used to conduct analysis?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

108. Question

In DOE the principle of parsimony suggests that the goal of DOE is to use the minimum amount of data to discover the maximum amount of information?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

109. Question

When two input factors are aliases of each other, the effects they each have on the response cannot be separated?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

110. Question

A Resolution III DOE confounds its main effect with?

Three-Way Interactions

Correct Incorrect Correct answer

Two-Way Interactions

Correct Incorrect Correct answer

Four-Way Interactions

Correct Incorrect Correct answer

111. Question

A Resolution IV DOE confounds its main effect with?

Three-Way Interactions

Correct Incorrect Correct answer

Two-Way Interactions

Correct Incorrect Correct answer

Four-Way Interactions

Correct Incorrect Correct answer

112. Question

A Resolution V DOE confounds its main effect with?

Three-Way Interactions

Correct Incorrect Correct answer

Two-Way Interactions

Correct Incorrect Correct answer

Four-Way Interactions

Correct Incorrect Correct answer

113. Question

R2 is also referred to as the coefficient of determination?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

114. Question

_________ is used to model the linear relationship between one output and two or more inputs?

Multiple Linear Regression

Correct Incorrect Correct answer

Simple Linear Regression

Correct Incorrect Correct answer

Correlation Coefficient

Correct Incorrect Correct answer

Residual Analysis

Correct Incorrect Correct answer

115. Question

_______ are the vertical differences between actual values and the predicted values or the “fitted line” created by a regression model?

Residuals

Correct Incorrect Correct answer

Outliers

Correct Incorrect Correct answer

X's

Correct Incorrect Correct answer

Fitted Values

Correct Incorrect Correct answer

116. Question

When the variance inflation factor of an independent variable is larger than ______ there is large multicollinearity for this variable in the model?

10

Correct Incorrect Correct answer

5

Correct Incorrect Correct answer

1

Correct Incorrect Correct answer

0

Correct Incorrect Correct answer

117. Question

______ is the measure or quantifiable degree of confounding?

Resolution

Correct Incorrect Correct answer

VIF

Correct Incorrect Correct answer

RPN

Correct Incorrect Correct answer

Alias

Correct Incorrect Correct answer

118. Question

What is the primary purpose of linear correlation analysis?

To measure the strength of the linear association between two variables

Correct Incorrect Correct answer

To get an average indication

Correct Incorrect Correct answer

To calculate 's'

Correct Incorrect Correct answer

119. Question

Multiple linear regression is best described by which?

One X, One Y

Correct Incorrect Correct answer

Two X's, Two Y's

Correct Incorrect Correct answer

Two or more X's, One Y

Correct Incorrect Correct answer

Two or more X's, Two or more Y's

Correct Incorrect Correct answer

120. Question

What is the coefficient in this regression formula: Length = 3.5 + 1.29 mass

3.5

Correct Incorrect Correct answer

-3.5

Correct Incorrect Correct answer

1.29

Correct Incorrect Correct answer

-1.29

Correct Incorrect Correct answer

121. Question

Regression analysis does not rely on this assumption about the residuals

to be normally distributed

Correct Incorrect Correct answer

to be independent of each other (no patterns and time ordered)

Correct Incorrect Correct answer

non-constant variance

Correct Incorrect Correct answer

122. Question

When are correlation and linear regression not used?

to understand the strength and direction of a relationship

Correct Incorrect Correct answer

to understand what happens to the value of X when the value of Y is increasing by one unit

Correct Incorrect Correct answer

to establish a prediction equation that will enable us to predict Y for any level of X

Correct Incorrect Correct answer

123. Question

Which of the following statements is NOT correct?

the Pearson correlation coefficient "r" will always fall between -1.0 and 1.0

Correct Incorrect Correct answer

a correlation of -0.9 indicates a strong positive relationship

Correct Incorrect Correct answer

a correlation of 0.9 indicates a strong positive relationship

Correct Incorrect Correct answer

124. Question

When is the degree of association Moderate?

0.9 <= r 80%

Correct Incorrect Correct answer

0.7 <= r <= 0.9, R^2 = 50% to 80%

Correct Incorrect Correct answer

r= < 0.3, R^2 =25%

Correct Incorrect Correct answer

125. Question

How is the transformation of non-normal data into normal data done?

Using Cox plot

Correct Incorrect Correct answer

Using a mathematical function to transform data

Correct Incorrect Correct answer

126. Question

What does a variance inflation factor (VIF) of 5 indicate?

No multicollinearity

Correct Incorrect Correct answer

Medium multicollinearity

Correct Incorrect Correct answer

Large multicollinearity

Correct Incorrect Correct answer

127. Question

One factor at a time (OFAT) is a type of DOE

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

128. Question

Your multiple regression model returned 3 variables that were significant, and the model looks good based on all other measures. Of the 3 variables, which one has the most influence on your “Y?

The one with the lowest coefficient

Correct Incorrect Correct answer

The one with the highest coefficient

Correct Incorrect Correct answer

The one with a positive coefficient

Correct Incorrect Correct answer

The one with the negative coefficient

Correct Incorrect Correct answer

129. Question

An interaction effect is the average change in the response variable resulting from changes in the levels of one factor?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

130. Question

Interaction effect is the average change in the response resulting from the change in the interaction of multiple factors?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

131. Question

Fractional factorials are less able to determine effects because of fewer degrees of freedom available to evaluate higher order interactions?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

132. Question

Factor levels are the selected settings of a factor we are testing in the experiment

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

133. Question

_______ are the number of times running an individual treatment is repeated in a DOE?

Duplicates

Correct Incorrect Correct answer

Folds

Correct Incorrect Correct answer

Replicates

Correct Incorrect Correct answer

Center Points

Correct Incorrect Correct answer

134. Question

An experiment design is ________ if the main effect of one factor can be evaluated independent of other factors.

Confounded

Correct Incorrect Correct answer

Aliased

Correct Incorrect Correct answer

Orthogonal

Correct Incorrect Correct answer

135. Question

_______is the quantification or degree of confounding in a DOE?

Alias

Correct Incorrect Correct answer

Orthogonality

Correct Incorrect Correct answer

Resolution

Correct Incorrect Correct answer

Corner Points

Correct Incorrect Correct answer

136. Question

The following descriptions is best matched with which DOE term; The Y or Dependent Variable or Process output measurement?

Effect

Correct Incorrect Correct answer

Response

Correct Incorrect Correct answer

Factors

Correct Incorrect Correct answer

Levels

Correct Incorrect Correct answer

137. Question

The following descriptions is best matched with which DOE term; The change in the average response across two levels of a factor or between experimental conditions?

Effect

Correct Incorrect Correct answer

Response

Correct Incorrect Correct answer

Factors

Correct Incorrect Correct answer

Levels

Correct Incorrect Correct answer

138. Question

The following descriptions is best matched with which DOE term; The X’s or Inputs or Independent variables?

Effect

Correct Incorrect Correct answer

Response

Correct Incorrect Correct answer

Factors

Correct Incorrect Correct answer

Levels

Correct Incorrect Correct answer

139. Question

The following descriptions is best matched with which DOE term; Factor settings usually high and low, or + and -, or 1 and -1

Effect

Correct Incorrect Correct answer

Response

Correct Incorrect Correct answer

Factors

Correct Incorrect Correct answer

Levels

Correct Incorrect Correct answer

140. Question

Which of the following is a key advantage of DOE over passive learning?

DOE is One Factor at a Time (OFAT)

Correct Incorrect Correct answer

DOE consumes more resources and time

Correct Incorrect Correct answer

DOE is active learning through planned study

Correct Incorrect Correct answer

DOE is uses unplanned data collection to draw conclusions

Correct Incorrect Correct answer

141. Question

Statistical process control can be used in different phases of six sigma projects, such as before and after implementation of improvements?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

142. Question

True or False, the following are valid characteristics of a Lean Enterprise; Pull Systems, Flow, Availability, Zero Waste, and Value Add

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

143. Question

What type of muda is waste from working more than required, scheduling more capacity than necessary or using resources that are overkill?

Inventory

Correct Incorrect Correct answer

Over-Processing

Correct Incorrect Correct answer

Waiting

Correct Incorrect Correct answer

Over-Production

Correct Incorrect Correct answer

144. Question

Which of the following should not be included among the 5 Principles of Lean?

Customer Defines Value

Correct Incorrect Correct answer

Identify the Value Stream

Correct Incorrect Correct answer

Batch Processing

Correct Incorrect Correct answer

Continuous Flow

Correct Incorrect Correct answer

145. Question

Lean is only about removing waste from the enterprise?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

146. Question

_________ is when more products are produced than are required by the next function or customer.

Over Production

Correct Incorrect Correct answer

Over Processing

Correct Incorrect Correct answer

Motion

Correct Incorrect Correct answer

Conveyance

Correct Incorrect Correct answer

147. Question

The Japanese word for waste is Sieri?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

148. Question

Some of the core concepts of Lean is to concentrate effort on removing waste, improving flow, and achieving ___________

Inventory

Correct Incorrect Correct answer

Sales

Correct Incorrect Correct answer

Pull

Correct Incorrect Correct answer

Downtime

Correct Incorrect Correct answer

149. Question

If we produce more than is needed by the next step in the process or more than the customer needs this is an example of which element of waste?

Over processing

Correct Incorrect Correct answer

Correction (defects)

Correct Incorrect Correct answer

Motion

Correct Incorrect Correct answer

Overproduction

Correct Incorrect Correct answer

150. Question

The Japanese word for waste is Muda?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

151. Question

The only purpose of LEAN is to concentrate efforts on removing variation from a process output and lowering costs

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

152. Question

A reduction in any type of Muda will always reduce outliers and defects?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

153. Question

Lean Principles define _______ forms of waste that should be addressed by a business enterprise.

3

Correct Incorrect Correct answer

5

Correct Incorrect Correct answer

7

Correct Incorrect Correct answer

10

Correct Incorrect Correct answer

154. Question

Sigma refers to a roman letter that mathematicians use when discussing “average” or “mean”

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

155. Question

Six Sigma originated in the 1980’s at Motorola?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

156. Question

Achieving Six Sigma has nothing to do with meeting customer expectations?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

157. Question

Hard costs and soft costs are two types of COPQ

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

158. Question

CTQ’s are translated from VOC

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

159. Question

In Six Sigma Primary and Secondary Metrics are Mandatory

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

160. Question

To achieve Six Sigma the DMAIC methodology follows which approach

Brainstorm possible factors then randomly analyze them to find the significant ones

Correct Incorrect Correct answer

Use SME knowledge and experience to quickly find solutions

Correct Incorrect Correct answer

Use the transfer function Y=f(x)

Correct Incorrect Correct answer

161. Question

Who is credited as being the father of Six Sigma?

Bob Galvin

Correct Incorrect Correct answer

Mikel Harry

Correct Incorrect Correct answer

Bill Smith

Correct Incorrect Correct answer

Jack Welch

Correct Incorrect Correct answer

162. Question

Which of these is not one of the 4 stages of team development?

Performing

Correct Incorrect Correct answer

Norming

Correct Incorrect Correct answer

Storming

Correct Incorrect Correct answer

Forming

Correct Incorrect Correct answer

163. Question

Which is not a characteristic of a successful team?

Team members with common skills, knowledge, experience and opinions

Correct Incorrect Correct answer

Common goals and working together to achieve said goals

Correct Incorrect Correct answer

Appropriate resources are available

Correct Incorrect Correct answer

Mutual Respect

Correct Incorrect Correct answer

164. Question

A well written problem statement contains all the following except?

Baseline

Correct Incorrect Correct answer

Goal

Correct Incorrect Correct answer

COPQ

Correct Incorrect Correct answer

Proposed solution

Correct Incorrect Correct answer

165. Question

Lean and Six Sigma are Both focused on Quality and Value for the customer?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

166. Question

A process operating at 6 Sigma will only generate 3.4 defects per million opportunities?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

167. Question

Continuous variables are measured, Discrete variables are counted?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

168. Question

CTQ is an acronym that stands for what?

Critical to Quality

Correct Incorrect Correct answer

Critical to Quantity

Correct Incorrect Correct answer

Cost to Quality

Correct Incorrect Correct answer

169. Question

The ________ metric is your critical measure, it’s the reason for your project, it’s your beacon. This metric is the single most important thing to understand for you to be successful.

Primary

Correct Incorrect Correct answer

Secondary

Correct Incorrect Correct answer

170. Question

COPQ is an acronym that stands for?

Cost of Poor Quality

Correct Incorrect Correct answer

Cost of Proper Quality

Correct Incorrect Correct answer

171. Question

A Six Sigma process will only produce this many defects per million opportunities?

3.4

Correct Incorrect Correct answer

340

Correct Incorrect Correct answer

3400

Correct Incorrect Correct answer

34

Correct Incorrect Correct answer

172. Question

_______ are flaws, errors or other non-conformities that compromise the value of a product.

Defects

Correct Incorrect Correct answer

DPMO

Correct Incorrect Correct answer

DPU

Correct Incorrect Correct answer

Defectives

Correct Incorrect Correct answer

173. Question

What is a Y measure?

Output

Correct Incorrect Correct answer

Input

Correct Incorrect Correct answer

Process

Correct Incorrect Correct answer

174. Question

Who delivers the input for the CTQ?

Customers

Correct Incorrect Correct answer

CFO

Correct Incorrect Correct answer

process owner

Correct Incorrect Correct answer

175. Question

The essence of Six Sigma is to concentrate on removing waste (Muda) from a process while lowering costs.

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

176. Question

Which of the following best describe Six Sigma?

Metric, Methodology, Management System

Correct Incorrect Correct answer

A Philosophical business system

Correct Incorrect Correct answer

A measure for standard deviation

Correct Incorrect Correct answer

A measure for variance

Correct Incorrect Correct answer

177. Question

Which of the following best describe Sigma?

A overall methodology that drives business improvement

Correct Incorrect Correct answer

A measurement scale upon which improvements can be gauged

Correct Incorrect Correct answer

A Greek letter referring to average

Correct Incorrect Correct answer

178. Question

The higher a Sigma level the better?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

179. Question

Which of the following might review Process Performance?

A Project Sponsor

Correct Incorrect Correct answer

A Process Owner

Correct Incorrect Correct answer

A Project Stakeholder

Correct Incorrect Correct answer

All are correct

Correct Incorrect Correct answer

180. Question

What does DPMO stand for?

Direct Proportion Measured Overall

Correct Incorrect Correct answer

Defective Parts Measured Opportunities

Correct Incorrect Correct answer

Defects per Million Opportunities

Correct Incorrect Correct answer

Defective Parts Million Opportunities

Correct Incorrect Correct answer

181. Question

Where in your SIPOC might stakeholders be represented?

Suppliers

Correct Incorrect Correct answer

Customers

Correct Incorrect Correct answer

Input

Correct Incorrect Correct answer

Output

Correct Incorrect Correct answer

182. Question

What is the long-term Sigma with a DPMO of 3.4 and a yield of 99.9996%?

10 Sigma

Correct Incorrect Correct answer

8 Sigma

Correct Incorrect Correct answer

6 Sigma

Correct Incorrect Correct answer

4 Sigma

Correct Incorrect Correct answer

183. Question

What are some LEAN Six Sigma objectives?

Reducing variation

Correct Incorrect Correct answer

Delivering business results

Correct Incorrect Correct answer

Customer satisfaction

Correct Incorrect Correct answer

Achieving business targets

Correct Incorrect Correct answer

184. Question

To understand the CTQ attributes of a product or service, we need to get?

SOD

Correct Incorrect Correct answer

VOC

Correct Incorrect Correct answer

FMEA

Correct Incorrect Correct answer

SIPOC

Correct Incorrect Correct answer

185. Question

Which of the following is not a key output of the Define phase?

Project Charter

Correct Incorrect Correct answer

Primary Metric with Baseline

Correct Incorrect Correct answer

Pugh Matrix

Correct Incorrect Correct answer

Problem statement

Correct Incorrect Correct answer

186. Question

Who should have the most influence when writing a business case for a project?

Champion

Correct Incorrect Correct answer

Black Belt

Correct Incorrect Correct answer

Master Black Belt

Correct Incorrect Correct answer

Subject Matter Expert

Correct Incorrect Correct answer

187. Question

Which is not an example of hard savings?

Factory Costs Reduction

Correct Incorrect Correct answer

Lowered Inventory Carrying Costs

Correct Incorrect Correct answer

Regaining Lost Sales

Correct Incorrect Correct answer

Cycle time improvements lowering overtime hours paid

Correct Incorrect Correct answer

188. Question

What is an X measure?

Output Measure

Correct Incorrect Correct answer

Process Performance Measure

Correct Incorrect Correct answer

Input Measure

Correct Incorrect Correct answer

189. Question

Specifically, in Six Sigma, intentional changes in process performance comes from changing and controlling:

Process inputs

Correct Incorrect Correct answer

Process outputs

Correct Incorrect Correct answer

Random variables

Correct Incorrect Correct answer

Transparent variables

Correct Incorrect Correct answer

190. Question

A quality control function was introduced to catch defects before shipment to the customer. The cost of this quality control function is an example of:

Cost related to detection

Correct Incorrect Correct answer

Cost related to prevention

Correct Incorrect Correct answer

Cost related to obligation

Correct Incorrect Correct answer

Cost related to production

Correct Incorrect Correct answer

191. Question

When a process is proven to function at a 6 sigma level, this means there are less than 3.4 defects per ______ opportunities?

Hundred

Correct Incorrect Correct answer

Thousand

Correct Incorrect Correct answer

Million

Correct Incorrect Correct answer

Billion

Correct Incorrect Correct answer

192. Question

What is the Pareto Rule?

80/20

Correct Incorrect Correct answer

70/30

Correct Incorrect Correct answer

40/60

Correct Incorrect Correct answer

50/50

Correct Incorrect Correct answer

193. Question

Which of the following would not be a desired outcome of a Six Sigma program or project?

Customer Satisfaction

Correct Incorrect Correct answer

Maximize the bottom line for the business

Correct Incorrect Correct answer

Permanently eliminate the root cause of defects

Correct Incorrect Correct answer

Salary Increases

Correct Incorrect Correct answer

194. Question

If a process is determined to be operating at a 6 sigma level, then the number of defects per million opportunities is?

0.34

Correct Incorrect Correct answer

34

Correct Incorrect Correct answer

3.4

Correct Incorrect Correct answer

6

Correct Incorrect Correct answer

195. Question

The output of any process is comprised of the various inputs to that process. This concept is best expressed with which of the following formulas?

Y = 2(X1 + X2 + X3 +Xn)

Correct Incorrect Correct answer

Y= A+ B +C

Correct Incorrect Correct answer

Y= f(X1 +X2 +Xn)

Correct Incorrect Correct answer

Y =f(X1/Xn)

Correct Incorrect Correct answer

196. Question

Much of the efforts in a LEAN Six Sigma project are driven by a concept called VOC which stands for:

Velocity of Commerce

Correct Incorrect Correct answer

Voice of the Company

Correct Incorrect Correct answer

Voice of the Customer

Correct Incorrect Correct answer

Variation of the Concept

Correct Incorrect Correct answer

197. Question

As a Belt mapping a process she/he will use a ______________ symbol to designate a decision point in the process.

Rectangle

Correct Incorrect Correct answer

Diamond

Correct Incorrect Correct answer

Parallelogram

Correct Incorrect Correct answer

Circle

Correct Incorrect Correct answer

198. Question

Which of the following represents the information we are trying to achieve by seeking input from our customers in determining what is important to them?

CTQ's

Correct Incorrect Correct answer

Primary interests

Correct Incorrect Correct answer

Price sensitivities

Correct Incorrect Correct answer

Quality features

Correct Incorrect Correct answer

199. Question

Cost of Poor Quality (COPQ) can involve both Hard and Soft Costs.

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

200. Question

The data analysis technique that separates more important factors, typically in a ratio of 80:20, is ________?

X-Y Diagram

Correct Incorrect Correct answer

Pareto Analysis

Correct Incorrect Correct answer

Fishbone Diagram

Correct Incorrect Correct answer

Data Spreadsheet

Correct Incorrect Correct answer

201. Question

When a Belt adds information to a Process Map that defines which department is responsible for the various activities displayed, it could be referred to as _____________?

Fault Trees

Correct Incorrect Correct answer

Duty Designations

Correct Incorrect Correct answer

Swim Lanes

Correct Incorrect Correct answer

Authority Channels

Correct Incorrect Correct answer

202. Question

A SIPOC diagram helps us get a good overall look at a process since it identifies the Suppliers, Inventories, Process steps, Outputs and Customers

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

203. Question

Six Sigma refers to a process whose output has at least 95% of its data points within 6 standard deviations from the mean.

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

204. Question

Profit and market share would be the concern of which of the following?

Voice of the Customer

Correct Incorrect Correct answer

Voice of the Government

Correct Incorrect Correct answer

Voice of the Process

Correct Incorrect Correct answer

Voice of the Business

Correct Incorrect Correct answer

205. Question

As we conceive and define a LEAN Six Sigma project, one of the overriding objectives we hope to accomplish is to reduce the __________

Work force

Correct Incorrect Correct answer

Number of process steps

Correct Incorrect Correct answer

Inventory

Correct Incorrect Correct answer

Cost of Poor Quality

Correct Incorrect Correct answer

206. Question

How should CTQ’s not be established?

VOC

Correct Incorrect Correct answer

Complaints

Correct Incorrect Correct answer

Requirements

Correct Incorrect Correct answer

What you think the customer wants

Correct Incorrect Correct answer

207. Question

In most cases, a project team is most autonomous and receives the least amount of direction during which of the following stages?

Forming

Correct Incorrect Correct answer

Storming

Correct Incorrect Correct answer

Norming

Correct Incorrect Correct answer

Performing

Correct Incorrect Correct answer

208. Question

What is not a good reason for spending so much time in the Define phase?

Establishing a good business case and project charter

Correct Incorrect Correct answer

Defining the problem before trying to solve it

Correct Incorrect Correct answer

Filling out redundant templates, getting unnecessary approvals and completing administrative tasks

Correct Incorrect Correct answer

209. Question

The Pareto Principle is named after an Italian economist Vilfredo Pareto

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

210. Question

Which of the following is the name for the mathematical expression of the relationship between the inputs and outputs of a system?

DPMO

Correct Incorrect Correct answer

DPU

Correct Incorrect Correct answer

COPQ

Correct Incorrect Correct answer

Transfer Function

Correct Incorrect Correct answer

211. Question

Which of the following suggests that the value or function of the entire unit or product has been compromised?

Defect

Correct Incorrect Correct answer

Defective

Correct Incorrect Correct answer

212. Question

A Six Sigma process is one that has process variation equal to or greater than six (6) standard deviations?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

213. Question

Which is the systematic problem-solving methodology used to achieve Six Sigma?

Y=f(x)

Correct Incorrect Correct answer

COPQ

Correct Incorrect Correct answer

5S

Correct Incorrect Correct answer

DMAIC

Correct Incorrect Correct answer

214. Question

This type of process map has an additional dimension that is used to show which job performs a process step or makes the decision in a process?

High Level Process Map

Correct Incorrect Correct answer

Detailed Process Map

Correct Incorrect Correct answer

Functional Process Map

Correct Incorrect Correct answer

SIPOC

Correct Incorrect Correct answer

215. Question

Which of the following would be considered a “Direct” data collection method used to gather VOC?

Warranty Claims

Correct Incorrect Correct answer

Conducting Customer Surveys

Correct Incorrect Correct answer

Customer Complaints

Correct Incorrect Correct answer

Sales Reports

Correct Incorrect Correct answer

216. Question

The expense incurred due to waste, inefficiencies and defects?

Muda

Correct Incorrect Correct answer

COPQ

Correct Incorrect Correct answer

VOC

Correct Incorrect Correct answer

CTQ

Correct Incorrect Correct answer

217. Question

This is the measure of something you do not want sacrificed to make improvements. It’s a measure that keeps the project honest and helps to make sure problems are not just changing forms or moving around?

COPQ

Correct Incorrect Correct answer

Secondary Metric

Correct Incorrect Correct answer

Primary Metric

Correct Incorrect Correct answer

PERT

Correct Incorrect Correct answer

218. Question

You are a manager of a 3-step production process and you want to assess the Rolled Throughput Yield of your entire process. The process has the following performance: 1100 units enter production process step #1. It is determined that there are 160 defects resulting from this first process step. What is the yield of process step #1?

0.865

Correct Incorrect Correct answer

6.875

Correct Incorrect Correct answer

0.83

Correct Incorrect Correct answer

0.145

Correct Incorrect Correct answer

219. Question

Which principle of the 5S methodology is about avoiding falling back to the old ways of cluttered and unorganized work environment?

Sorting

Correct Incorrect Correct answer

Shining

Correct Incorrect Correct answer

Standardizing

Correct Incorrect Correct answer

Sustaining

Correct Incorrect Correct answer

220. Question

A Black Belt stores tools in marked locations so that workers can find and access them easily when they are needed. Which principle of 5S methodology is the Black Belt applying?

Shining

Correct Incorrect Correct answer

Sustaining

Correct Incorrect Correct answer

Sorting

Correct Incorrect Correct answer

Straightening (Set in Order)

Correct Incorrect Correct answer

221. Question

Which of these 5S’s is the first in the order of proper execution?

Shine

Correct Incorrect Correct answer

Set in Order

Correct Incorrect Correct answer

Sort

Correct Incorrect Correct answer

Standardize

Correct Incorrect Correct answer

222. Question

Poka-Yoke eliminates the defect as early as possible in the process

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

223. Question

Kanban system is a ______ driven system?

Pull

Correct Incorrect Correct answer

Push

Correct Incorrect Correct answer

224. Question

5S Sorting: Items used weekly should be kept _______?

Within arm's reach

Correct Incorrect Correct answer

In a local location

Correct Incorrect Correct answer

In a remote location

Correct Incorrect Correct answer

225. Question

Kanban systems are quick fixes to large inventory problems, workforce issues, poor product planning, fluctuating demand cycles etc.

Correct

Correct Incorrect Correct answer

Incorrect

Correct Incorrect Correct answer

226. Question

Mistake proofing is defined as…

Making sure we discover when a defect occurs

Correct Incorrect Correct answer

Using wisdom or ingenuity to create devices allowing 100% defect free steps 100% of the time

Correct Incorrect Correct answer

Find the reason (proof) of mistakes

Correct Incorrect Correct answer

227. Question

Which would not be representative of good mistake proofing?

be as simple as possible

Correct Incorrect Correct answer

require no investment in money or resources

Correct Incorrect Correct answer

be automatic where possible

Correct Incorrect Correct answer

228. Question

The 5S principle that says remove all items not required for the re-occurring work at hand and keeping only essentials nearby is known as?

Sorting

Correct Incorrect Correct answer

Shining

Correct Incorrect Correct answer

Straightening

Correct Incorrect Correct answer

Standardizing

Correct Incorrect Correct answer

229. Question

The Lean technique that focuses on making “important work flow issues” noticeable is called?

Value Stream

Correct Incorrect Correct answer

Muda

Correct Incorrect Correct answer

Visual Factory

Correct Incorrect Correct answer

Kaizen

Correct Incorrect Correct answer

230. Question

A method utilized to streamline workflow in a manner that minimizes waste through the use of signals that trigger “flow” through each process step is known as?

Mistake Proofing

Correct Incorrect Correct answer

Kanban

Correct Incorrect Correct answer

Sustaining

Correct Incorrect Correct answer

Shewhart Principle

Correct Incorrect Correct answer

231. Question

The practice of utilizing Mistake Proofing is also known as…

Detection

Correct Incorrect Correct answer

Lean Controls

Correct Incorrect Correct answer

Inspection

Correct Incorrect Correct answer

Poka-Yoke

Correct Incorrect Correct answer

232. Question

The 5S approach utilized by a Belt to separate necessary from unnecessary items and frequently used items from infrequently used items is known as?

Sorting

Correct Incorrect Correct answer

Shining

Correct Incorrect Correct answer

Standardizing

Correct Incorrect Correct answer

Sustaining

Correct Incorrect Correct answer

233. Question

As part of a 5S activity, tags or stickers are used to identify items in need of elimination or another categorization. This process is conducted at what stage of the 5S process?

Sort

Correct Incorrect Correct answer

Set in Order

Correct Incorrect Correct answer

Shine

Correct Incorrect Correct answer

Standardize

Correct Incorrect Correct answer

234. Question

The use of Kanbans work best with pull systems for determining the timing of which products or services are produced

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

235. Question

When a Belt applies the practice of Poka-Yoke to a project, she/he is attempting to make certain the activity is _______

Mistake proofed

Correct Incorrect Correct answer

Well documented

Correct Incorrect Correct answer

Removed from the line

Correct Incorrect Correct answer

Highly visible

Correct Incorrect Correct answer

236. Question

In 5S, the approach that deals with cleansing, repairing, and/or painting machinery or other work spaces is known as which stage?

Shine

Correct Incorrect Correct answer

Sort

Correct Incorrect Correct answer

Sustain

Correct Incorrect Correct answer

Standardize

Correct Incorrect Correct answer

237. Question

Which of the following items should not be on control charts?

Control Limits

Correct Incorrect Correct answer

Process Mean

Correct Incorrect Correct answer

Specification Limits

Correct Incorrect Correct answer

238. Question

Which control chart should be used to track average defects per unit?

U chart

Correct Incorrect Correct answer

P chart

Correct Incorrect Correct answer

NP chart

Correct Incorrect Correct answer

239. Question

Which control chart should be used to track percent defective?

U chart

Correct Incorrect Correct answer

P chart

Correct Incorrect Correct answer

NP chart

Correct Incorrect Correct answer

240. Question

Which control chart should be used to track the count of defectives?

U chart

Correct Incorrect Correct answer

P chart

Correct Incorrect Correct answer

NP chart

Correct Incorrect Correct answer

241. Question

What is the recommended subgroup size when using Xbar-S chart to check for process stability?

1

Correct Incorrect Correct answer

<10

Correct Incorrect Correct answer

>10

Correct Incorrect Correct answer

No constraints on subgroup size for Xbar-S

Correct Incorrect Correct answer

242. Question

What is the subgroup size when using a I-MR control chart?

1

Correct Incorrect Correct answer

2

Correct Incorrect Correct answer

0

Correct Incorrect Correct answer

No constraints on subgroup size

Correct Incorrect Correct answer

243. Question

The individuals chart in an IMR control chart is valid only if the moving range chart is in control?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

244. Question

Control charts are valid only if the data are normally distributed?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

245. Question

If a process is stable, the future performance of that process is predictable within certain limits?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

246. Question

In an EWMA chart, the more recent data gets more weight than the older data?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

247. Question

The subgroup sizes of an NP chart are constant?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

248. Question

Return on Investment (ROI) is the ratio of net financial benefits (either gain or loss) on a project or investment, to the financial costs?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

249. Question

Net Present Value (NPV) is total value of all future cash flows discounted to today’s value?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

250. Question

Which of the following reasons would not be a reason why one financial benefit estimation might differ from another?

Use of different discount rates

Correct Incorrect Correct answer

Different control plans

Correct Incorrect Correct answer

Different assumptions on project duration

Correct Incorrect Correct answer

Different assumption on project costs

Correct Incorrect Correct answer

251. Question

All the following are benefits of control plans except?

Ensures compliance with changes through auditing and corrective actions

Correct Incorrect Correct answer

Standardizes processes and work procedures

Correct Incorrect Correct answer

Helps to analyze and eliminate potential x's

Correct Incorrect Correct answer

Measures process performance, stability and capability

Correct Incorrect Correct answer

252. Question

Which of the following should not be a component of a control plan?

Key Metrics

Correct Incorrect Correct answer

Work Breakdown Structure

Correct Incorrect Correct answer

Specification Limits

Correct Incorrect Correct answer

Mitigation Actions

Correct Incorrect Correct answer

253. Question

Which of the following would not be among the collective elements of a great control plan?

Standard Operating Procedures

Correct Incorrect Correct answer

VOC

Correct Incorrect Correct answer

Training Plans

Correct Incorrect Correct answer

Response Plans

Correct Incorrect Correct answer

254. Question

Standard Operating Procedures should never include process maps or step by step procedures?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

255. Question

Communication plans are intended to plan and prepare for the dissemination of information?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

256. Question

Communication plans should always include the intended audience, message and purpose?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

257. Question

Standard Operating Procedures should never be documented?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

258. Question

Control limits are approximately _____ standard deviations away from the process mean?

3

Correct Incorrect Correct answer

2

Correct Incorrect Correct answer

6

Correct Incorrect Correct answer

1

Correct Incorrect Correct answer

259. Question

The underlying distribution of the P chart is the _____ distribution?

Binomial

Correct Incorrect Correct answer

F

Correct Incorrect Correct answer

Exponential

Correct Incorrect Correct answer

Normal

Correct Incorrect Correct answer

260. Question

SPC is used to identify the ____ cause variation?

Special

Correct Incorrect Correct answer

Common

Correct Incorrect Correct answer

261. Question

Control charts present the voice of the ______?

Process

Correct Incorrect Correct answer

Customer

Correct Incorrect Correct answer

Business

Correct Incorrect Correct answer

Associate

Correct Incorrect Correct answer

262. Question

The first test in the Western Electric Rules is to check whether any one point on the control chart is more than ______ standard deviations away from the center line?

3

Correct Incorrect Correct answer

1

Correct Incorrect Correct answer

6

Correct Incorrect Correct answer

263. Question

You can use an individuals chart to track process outputs and to detect the presence of special causes using a sample size of 1?

Correct

Correct Incorrect Correct answer

Incorrect

Correct Incorrect Correct answer

264. Question

The Xbar chart plots the average values of each of several small sampled subgroups

Correct

Correct Incorrect Correct answer

Incorrect

Correct Incorrect Correct answer

265. Question

Which is incorrect about U-charts?

The U-chart does not need a constant sample size

Correct Incorrect Correct answer

U-chart control limits will always be straight lines

Correct Incorrect Correct answer

The U-chart is used for discrete data

Correct Incorrect Correct answer

266. Question

The NP and P-charts are used for tracking _________?

defects

Correct Incorrect Correct answer

defectives

Correct Incorrect Correct answer

267. Question

Control charts and their limits are the?

Voice of the process

Correct Incorrect Correct answer

Voice of the customer

Correct Incorrect Correct answer

Voice of the employee

Correct Incorrect Correct answer

268. Question

An intended outcome of using SPC should be?

Process speed

Correct Incorrect Correct answer

Process capability

Correct Incorrect Correct answer

Process stability

Correct Incorrect Correct answer

269. Question

A Control Plan is finalized at the end of a LEAN Six Sigma project and given to the Process Owner so she/he can follow it exactly for the remaining life of the process

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

270. Question

As part of the deliverables from a Belt in the control phase of a LSS project, guidelines must be established as to what process operators are to do when outputs begin to operate outside of established limits. These guidelines are known as the _________.

Specification Limits

Correct Incorrect Correct answer

Kanban System

Correct Incorrect Correct answer

Control Limits

Correct Incorrect Correct answer

Response Plan

Correct Incorrect Correct answer

271. Question

The Control Plan is created following the finalization of the Improve phase and can be closed when?

After the project costs have been recouped

Correct Incorrect Correct answer

When the Sponsor says so

Correct Incorrect Correct answer

Never, a control plan must stay in place

Correct Incorrect Correct answer

End of year (project year)

Correct Incorrect Correct answer

272. Question

The use of station warning lights, tools boards, and jidoka devices represent the use of which lean concept?

Visual Factory

Correct Incorrect Correct answer

Gemba

Correct Incorrect Correct answer

Muda

Correct Incorrect Correct answer

273. Question

A concept that addresses the consistency of process-workers is called ________?

Visual Factory

Correct Incorrect Correct answer

Supervising

Correct Incorrect Correct answer

Standard Operating Procedures

Correct Incorrect Correct answer

274. Question

SPC on the outputs is more preferred than SPC on the inputs when implementing SPC for your process.

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

275. Question

Variation in process performance is a consequence of several causes that typically fall into which frequently used categories of variation?

Common cause and special cause variation

Correct Incorrect Correct answer

Common and Uncommon variation

Correct Incorrect Correct answer

Random and Cyclical variation

Correct Incorrect Correct answer

276. Question

When it comes to Control, one of the most effective means of eliminating defects is to…

Keep a Six Sigma project going on the process at all times

Correct Incorrect Correct answer

Design defect prevention into the product or process

Correct Incorrect Correct answer

Train personnel often and thoroughly

Correct Incorrect Correct answer

Have each process consist of no more than five steps

Correct Incorrect Correct answer

277. Question

for a good control chart implementation, you should re-calculate control limits and center-lines often?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

278. Question

The data on SPC charts are typically constructed such that the most recent data point is the last one on the right?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

279. Question

Which statement describes an undesirable situation when implementing SPC?

The MR chart of an IMR chart is out of control but individuals chart is in control

Correct Incorrect Correct answer

The lower Control Limit for the R chart is equal to zero

Correct Incorrect Correct answer

A process is in Statistical Control before implementation of SPC

Correct Incorrect Correct answer

280. Question

Which pair of control charts is most preferred for subgroup sizes of 10 or less using continuous data?

Individual and Moving Range

Correct Incorrect Correct answer

Xbar-R Charts

Correct Incorrect Correct answer

Xbar-S Charts

Correct Incorrect Correct answer

P and nP Charts

Correct Incorrect Correct answer

281. Question

A Belt concludes a Lean Six Sigma project with the creation of a Control Plan. At what point should the Control Plan be closed out?

Never, a Control Plan is a living document

Correct Incorrect Correct answer

When the project is delivered to the process owner

Correct Incorrect Correct answer

When the process is in control

Correct Incorrect Correct answer

When the process has been in control for 12 months

Correct Incorrect Correct answer

282. Question

If a project yields monthly savings of $4,000 beginning 4 months after implementation with an initial investment of $42,000 and training costs of $2,000, what is the 3-year ROI from implementation?

1.9

Correct Incorrect Correct answer

2.9

Correct Incorrect Correct answer

2.27

Correct Incorrect Correct answer

3.27

Correct Incorrect Correct answer

283. Question

If a project yields monthly savings of $4,000 beginning 4 months after implementation with an initial investment of $42,000 and training costs of $2,000, what is the 5-year ROI from implementation?

4.09

Correct Incorrect Correct answer

4.45

Correct Incorrect Correct answer

5.09

Correct Incorrect Correct answer

5.45

Correct Incorrect Correct answer

284. Question

Z distribution is the simplest normal distribution with the mean equal to ______ and standard deviation equal to ________?

Mean=0 and Standard Deviation=1

Correct Incorrect Correct answer

Mean=1 and Standard Deviation=0

Correct Incorrect Correct answer

Mean=0 and Standard Deviation=0

Correct Incorrect Correct answer

Mean=1 and Standard Deviation=1

Correct Incorrect Correct answer

285. Question

A t-test is a hypothesis test in which the test statistic follows the Student’s t distribution if the null hypothesis is true?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

286. Question

In which condition should you fail to reject the null hypothesis?

The test statistic is greater than the critical value

Correct Incorrect Correct answer

P-value is smaller than alpha level

Correct Incorrect Correct answer

P-value s greater than alpha level

Correct Incorrect Correct answer

287. Question

Inferential statistics is descriptive only and does not make any generalizations beyond the data at hand?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

288. Question

Which hypothesis test would be the most appropriate to compare the means of 2 samples

2 Sample t-test

Correct Incorrect Correct answer

Mann-Whitney

Correct Incorrect Correct answer

Moods Median

Correct Incorrect Correct answer

2 Proportion test

Correct Incorrect Correct answer

289. Question

Which hypothesis test would be the most appropriate to compare the mean of a sample to a target value

1 Proportion test

Correct Incorrect Correct answer

1 Sample t Test

Correct Incorrect Correct answer

Moods Median

Correct Incorrect Correct answer

Mann-Whitney

Correct Incorrect Correct answer

290. Question

Which hypothesis test would be the most appropriate to compare the median of 2 samples

2 Sample t-test

Correct Incorrect Correct answer

ANOVA

Correct Incorrect Correct answer

2 Proportion test

Correct Incorrect Correct answer

Mann-Whitney

Correct Incorrect Correct answer

291. Question

One sample t-test is a hypothesis test to study whether there is a statistically significant difference between a population mean and a specified value or target?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

292. Question

One-tailed hypothesis test is used when we care about whether there is a difference between groups and we don’t care about the direction of the difference?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

293. Question

One-way ANOVA (one-way analysis of variance) is a statistical method to compare means of two or more populations?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

294. Question

One-way ANOVA (one-way analysis of variance) is a statistical method to compare variances of two or more populations?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

295. Question

Which of the following would not be considered an example of graphical analysis?

Box Plots

Correct Incorrect Correct answer

Scatter Plots

Correct Incorrect Correct answer

Histograms

Correct Incorrect Correct answer

Regression Equation

Correct Incorrect Correct answer

296. Question

The Exponential distribution is very similar to the Poisson distribution except that the Exponential is built on continuous variables and the Poisson is built on discrete variables.

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

297. Question

The higher the confidence level, the wider the confidence interval?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

298. Question

The more variability, the wider the confidence interval?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

299. Question

The null hypothesis for a normality test is that the data are normally distributed?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

300. Question

The null hypothesis for a Paired t-test is: MuA – MuB = 0

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

301. Question

The proportion of the area under the sampling distribution and beyond the test statistic is p-value?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

302. Question

To reduce β risk, we decrease the sample size?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

303. Question

Which hypothesis test is used to check whether the population of our interest is normally distributed?

Anderson-Darling test

Correct Incorrect Correct answer

F test

Correct Incorrect Correct answer

Levene's test

Correct Incorrect Correct answer

304. Question

Which is NOT an assumption of a one-way ANOVA?

The k population

Correct Incorrect Correct answer

The data of k populations are normally distributed

Correct Incorrect Correct answer

The variances of k populations are unequal

Correct Incorrect Correct answer

305. Question

Which of the following is NOT a goal of rational subgrouping?

Maximize the likelihood of detecting special cause variation

Correct Incorrect Correct answer

Maximize the likelihood of detecting common cause variation

Correct Incorrect Correct answer

Identify the changes in the process

Correct Incorrect Correct answer

Reflect the variation between sub groups

Correct Incorrect Correct answer

306. Question

Which of the following tests would you use to determine if there is a statistically significant difference between a population mean and a specified value?

2 sample t-test

Correct Incorrect Correct answer

Normality test

Correct Incorrect Correct answer

Test for equal variances

Correct Incorrect Correct answer

1 sample t-test

Correct Incorrect Correct answer

307. Question

Which of these would you reject the null hypothesis?

p-value=0.14

Correct Incorrect Correct answer

p-value=0.410

Correct Incorrect Correct answer

p-value=0.014

Correct Incorrect Correct answer

308. Question

α risk is the risk of making a Type I error?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

309. Question

Which distribution has mean equal to np and the variance equal to np(1-p)?

Binomial Distribution

Correct Incorrect Correct answer

Normal Distribution

Correct Incorrect Correct answer

Exponential Distribution

Correct Incorrect Correct answer

Weibull Distribution

Correct Incorrect Correct answer

310. Question

Mann-Whitney test is a statistical hypothesis test to compare the _______of two populations which are not normally distributed?

Medians

Correct Incorrect Correct answer

Means

Correct Incorrect Correct answer

Standard Deviations

Correct Incorrect Correct answer

Modes

Correct Incorrect Correct answer

311. Question

When the p-value is _____ than the α level, we reject the null and claim that there is a statistically significant difference between different groups?

Less

Correct Incorrect Correct answer

Greater

Correct Incorrect Correct answer

312. Question

A _________ test is a statistical method in which a specific hypothesis is formulated about the population, and the decision of whether to reject the hypothesis is made based on sample data?

Hypothesis

Correct Incorrect Correct answer

Control

Correct Incorrect Correct answer

Pareto

Correct Incorrect Correct answer

313. Question

________ is a continuous probability distribution which arises in the analysis of variance or test of equality between two variances?

F Distribution

Correct Incorrect Correct answer

Z Distribution

Correct Incorrect Correct answer

Normal Distribution

Correct Incorrect Correct answer

314. Question

The _________ distribution is a discrete probability distribution describing the probability of several events occurring at a known average rate and in a fixed period of time?

Poisson

Correct Incorrect Correct answer

F

Correct Incorrect Correct answer

Exponential

Correct Incorrect Correct answer

315. Question

A population is grouped into distinct and independent categories and then samples are randomly or systematically selected in each category of the population. Which sampling strategy is it?

simple random sampling

Correct Incorrect Correct answer

stratified sampling

Correct Incorrect Correct answer

cluster sampling

Correct Incorrect Correct answer

316. Question

Statistical inference is the process of making inferences regarding the characteristics of an unobservable population based on the characteristics of the observed sample?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

317. Question

The process of selecting a subset of observations within a population is referred to as sampling?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

318. Question

The _______ is used to visualize sources of variation

Multi-Vari Chart

Correct Incorrect Correct answer

Box Plot

Correct Incorrect Correct answer

Scatter Plot

Correct Incorrect Correct answer

319. Question

_________ is applied to infer the characteristics or relationships of the populations from which the data are collected?

Statistics

Correct Incorrect Correct answer

Common Sense

Correct Incorrect Correct answer

320. Question

The probability of a continuous variable falling within a particular region is the integral of the _________ over the region?

probability density function

Correct Incorrect Correct answer

probability mass function

Correct Incorrect Correct answer

321. Question

If the p-value is less than 0.05 what is the general rule?

Reject the Ho

Correct Incorrect Correct answer

Reject the Ha

Correct Incorrect Correct answer

322. Question

Which is not indicative of statistical inference

Using representative sampling to draw conclusions about an entire population

Correct Incorrect Correct answer

Estimating population parameters

Correct Incorrect Correct answer

Using sampling analysis to make population predictions

Correct Incorrect Correct answer

Estimating population parameters using the inverted w sampling method

Correct Incorrect Correct answer

323. Question

The population used in statistics is defined as a sample large enough that you can analyze it and draw conclusions as to all the data?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

324. Question

A skewness of 2,3453 can imply what?

Distribution is skewed to the right

Correct Incorrect Correct answer

Distribution is skewed to the left

Correct Incorrect Correct answer

Normal distribution

Correct Incorrect Correct answer

Bi-modal distribution

Correct Incorrect Correct answer

325. Question

A kurtosis of -1,2754 indicates?

Platykurtic (flat with a short tail)

Correct Incorrect Correct answer

Leptokurtic (peaked with long tails)

Correct Incorrect Correct answer

Multi-modal (more than one distribution)

Correct Incorrect Correct answer

326. Question

Hypothesis testing can help establish a statistical difference among factors in data sets?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

327. Question

A two-sample T-test does which of the following?

Subtracts the mean of sample 1 from sample 2 and compares the difference to zero to determine if they are equal

Correct Incorrect Correct answer

Compares the medians to determine if sample 1 is statistically difference from sample 2

Correct Incorrect Correct answer

Compares the means to determine if sample 1 is statistically difference from sample 2

Correct Incorrect Correct answer

328. Question

Which of the following is TRUE about Type I and Type II errors?

A Type II error is at least 2x larger than a Type I error

Correct Incorrect Correct answer

A Type I error deals with input variables (Xs) and a Type II error deals with output variables (Ys)

Correct Incorrect Correct answer

A Type I error is incorrectly rejecting the Null Hypothesis (HO) while Type II error is failing to reject the Null Hypothesis (HO) when you should

Correct Incorrect Correct answer

You can eliminate the possibility of a Type II error but not a Type I error

Correct Incorrect Correct answer

329. Question

What are confidence intervals (CI)?

The number of times out of 100 that the average result will fall within the bounds just calculated based on our sample result

Correct Incorrect Correct answer

At certain confidence intervals with upper confidence limits (UCL) and a lower confidence limit (LCL) has a x% chance of containing the true mean

Correct Incorrect Correct answer

330. Question

The Central Limit Theorem says that…

The sample means of many iterates of samples will approach being normally distributed regardless of the underlying distribution from which the samples were drawn.

Correct Incorrect Correct answer

A sample will always show the correct distribution if the sample size is above 30

Correct Incorrect Correct answer

331. Question

What test is used with an attribute Y and 3 X’s?

1 sample T-test

Correct Incorrect Correct answer

2 sample T-test

Correct Incorrect Correct answer

ANOVA

Correct Incorrect Correct answer

Chi Square

Correct Incorrect Correct answer

332. Question

What test should be used when comparing the average height of people from 2 different countries?

1 sample t-test

Correct Incorrect Correct answer

Chi-Square

Correct Incorrect Correct answer

2 sample t-test

Correct Incorrect Correct answer

F-test or Levene

Correct Incorrect Correct answer

333. Question

Which test should be used to compare the average results of 7 different Green Belt classes?

1 sample t-test

Correct Incorrect Correct answer

2 sample t-test

Correct Incorrect Correct answer

ANOVA

Correct Incorrect Correct answer

F-test or Levene

Correct Incorrect Correct answer

334. Question

When is the F-test NOT used?

When one of the groups are non-normally distributed

Correct Incorrect Correct answer

When the Levene test is easier

Correct Incorrect Correct answer

When both data sets are normally distributed

Correct Incorrect Correct answer

335. Question

Hypothesis testing can help us…

Make 100% risk free decisions

Correct Incorrect Correct answer

Make fact-based decisions

Correct Incorrect Correct answer

Know true population parameters

Correct Incorrect Correct answer

336. Question

A department has a hypothesis that its sales average is $17,200 per month. A sample report of 11 months shows a mean of $16,221. The standard deviation is $3,996. Using an alpha level of 5% and degrees of freedom (DF), what is the critical-T value for a 2-sided test as required in this case:

1.833

Correct Incorrect Correct answer

2.228

Correct Incorrect Correct answer

2.262

Correct Incorrect Correct answer

6.314

Correct Incorrect Correct answer

337. Question

If a hypothesis test shows a p-value of 0.28, but we see a practical difference, what could be a reason for failing to reject the null when there may be a difference?

Samples are representative

Correct Incorrect Correct answer

Sample size too small

Correct Incorrect Correct answer

Sample size to large

Correct Incorrect Correct answer

338. Question

Every hypothesis test must have the following except?

have Ho and Ha

Correct Incorrect Correct answer

have a defined alpha level

Correct Incorrect Correct answer

assume an underlying distribution

Correct Incorrect Correct answer

339. Question

The Mann-Whitney test focuses on what?

Mean

Correct Incorrect Correct answer

Variation

Correct Incorrect Correct answer

Median

Correct Incorrect Correct answer

340. Question

Which tool is used to compare more than two sample proportions with each other?

2 sample T-test

Correct Incorrect Correct answer

Mann-Whitney

Correct Incorrect Correct answer

Contingency Tables

Correct Incorrect Correct answer

Moods Median

Correct Incorrect Correct answer

341. Question

What is the main objective of implementing 5S in a process?

To create a clean, organized, and efficient work environment

Correct Incorrect Correct answer

To reduce cost only

Correct Incorrect Correct answer

To standardize SPC charts

Correct Incorrect Correct answer

To automate inspection

Correct Incorrect Correct answer

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