Trivia Flashcards
7 cards from real Certified Six Sigma Black Belt Exam practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Trivia flashcards as text
Which phase of DMAIC focuses on identifying all possible causes of a problem using tools like fishbone diagrams and 5 Whys?
Answer: Analyze
The Analyze phase is dedicated to identifying and verifying root causes of the problem through tools like cause-and-effect diagrams, regression analysis, and hypothesis testing.
What is the primary purpose of a 'Gage R&R' study in Six Sigma?
Answer: Assess measurement system variation relative to process variation
Gage Repeatability and Reproducibility (Gage R&R) evaluates how much variation in measurements comes from the measurement system itself versus the actual process variation.
In Design of Experiments (DOE), a 'full factorial' design tests:
Answer: All possible combinations of all factor levels
A full factorial design tests every possible combination of factor levels, providing complete information on main effects and all interactions.
The 'kano model' classifies customer needs into categories. Which category describes features that customers don't ask for but delight them when present?
Answer: Attractive requirements
Attractive requirements (also called 'delighters' or 'exciters') are unexpected features that generate high satisfaction when present but cause no dissatisfaction when absent.
Which of the following is a non-parametric alternative to the one-sample t-test?
Answer: Wilcoxon signed-rank test
The Wilcoxon signed-rank test is the non-parametric equivalent of the one-sample t-test, used when normality assumptions cannot be met.
In Six Sigma, 'entitlement' refers to:
Answer: The best performance a process has historically achieved
Entitlement is the best performance a process has actually achieved historically, representing what the process is capable of delivering under ideal conditions.
What is the purpose of the 'Control' phase in DMAIC?
Answer: Sustain the gains achieved and prevent regression
The Control phase implements control plans, monitoring systems, and standardized procedures to sustain improvements and prevent the process from reverting to its old behavior.