FREE Lean Six Sigma Green Belt DMAIC: Analyze Phase Techniques Questions and Answers Flashcards
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Read the first 6 FREE Lean Six Sigma Green Belt DMAIC: Analyze Phase Techniques Questions and Answers flashcards as text
Which graphical tool is used in the Analyze phase to visually display the relationship between two continuous variables?
Answer: Scatter diagram
A scatter diagram plots paired data points to reveal correlation or patterns between two continuous variables.
What is the primary purpose of a hypothesis test during the Analyze phase?
Answer: To determine if observed differences are statistically significant
Hypothesis testing determines whether observed differences or relationships in data are statistically significant or due to random chance.
In a cause-and-effect (fishbone) diagram, which of the following is NOT a traditional 6M category?
Answer: Money
The traditional 6Ms are Manpower, Machine, Method, Material, Measurement, and Mother Nature (Environment), not Money.
What does a p-value less than 0.05 typically indicate in the Analyze phase?
Answer: The null hypothesis should be rejected
A p-value below 0.05 indicates sufficient evidence to reject the null hypothesis at the 95% confidence level.
Which analysis technique compares the means of three or more groups to determine if at least one is significantly different?
Answer: ANOVA
Analysis of Variance (ANOVA) tests whether the means of three or more groups differ significantly from each other.
What is multi-vari analysis primarily used for in the Analyze phase?
Answer: Identifying the dominant source of variation among positional, cyclical, and temporal factors
Multi-vari analysis categorizes variation into positional, cyclical, and temporal components to identify the dominant source.