Posts Tagged ‘six sigma tools’
Importance of the Six Sigma Primary Metric
Primary Metric: The Six Sigma Primary Metric is mandatory! How does one know whether a project delivers on its objectives? Every project must choose the right metrics to determine success. Primary metrics serve as the center point for the work, ensuring that the project’s direction and decisions are data-driven. This metric is what stakeholders will…
Read MoreTop Ten Lean Six Sigma Tools
During your Six Sigma education journey, numerous tools are taught and provided to help you solve problems and identify solutions. The skills learned during your Lean Six Sigma training will help you understand when and how to use each of these Lean Six Sigma tools. While working through each DMAIC phase, there will be certain…
Read MoreHow to Define a Process
The essential method for defining a process is, without question, the process map. The process map helps you to understand a process and its component steps. Process maps help determine where and how a process begins and ends, as well as all the steps and decisions in between. By learning the basics of process mapping,…
Read MoreNormal Distribution and Normality
The normal distribution is also known as a Gaussian distribution. It is the most frequently referenced distribution and approximates many natural data tendencies. The normal distribution is a probability distribution of a continuous random variable whose values spread symmetrically around the mean. A normal distribution can be completely described by using its mean (μ) and…
Read MoreHow to Write a Project Charter
In a previous article, we stated that DMAIC is a structured, rigorous methodology that can be applied repeatedly to ANY process to achieve Six Sigma. We also stated that DMAIC is a methodology that covers the 5 phases of a project. Define Measure Analyze Improve Control Given that the DMAIC methodology is project-based, we must take the…
Read MorePareto Chart
The Pareto Principle is commonly known as the “law of the vital few” or “80:20 rule”. It means that the majority (approximately 80%) of effects are the result of only a few (approximately 20%) of the causes. This principle was first introduced in the early 1900s by Wilfried Fritz Pareto, an Italian economist who observed…
Read MoreMood’s Median Test with SigmaXL
What is a Mood’s Median Test with SigmaXL? The Mood’s Median test with SigmaXL is a statistical test to compare the medians of two or more populations. Null Hypothesis (H0): η1 = … = ηk Alternative Hypothesis (Ha): At least one of the medians is different from the others The symbol k is the number…
Read MorePaired T Test
Hypothesis testing allows us to validate an assumption or a “hypothesized” conclusion. We are able to accomplish this by using data and statistical measures that give us a better understanding of the risks we are taking if we reject or fail to reject the null hypothesis. Using a Paired t Test is necessary when the…
Read MoreWhat is the Difference Between Lean Six Sigma and Six Sigma?
Many people ask, “What is the difference between Lean Six Sigma and Six Sigma?” It should be known that the two methodologies are simply an integration of one into another. Lean Six Sigma is Six Sigma with elements of Lean integrated into its curriculum. Because the two methodologies go hand in hand, they are perfect…
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