Free Lean Six Sigma Green Belt Questions and Answers Flashcards
6 cards from real Lean Six Sigma Green Belt Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Free Lean Six Sigma Green Belt Questions and Answers flashcards as text
What is the difference between accuracy and precision in a measurement system?
Answer: Accuracy refers to closeness to the true value while precision refers to consistency of repeated measurements
Accuracy is how close measurements are to the true value, while precision is how consistently the same result is repeated.
In hypothesis testing, what does a Type I error represent?
Answer: Rejecting a true null hypothesis
A Type I error occurs when you reject the null hypothesis even though it is actually true, also known as a false positive.
What is the primary goal of the 5S methodology?
Answer: To create an organized, clean, and standardized workplace that reduces waste
5S (Sort, Set in Order, Shine, Standardize, Sustain) creates an organized workplace that eliminates waste and improves efficiency.
Which metric represents the number of defects per million opportunities?
Answer: DPMO
DPMO (Defects Per Million Opportunities) normalizes defect rates across processes with different numbers of opportunities for error.
What is a Gemba walk in Lean methodology?
Answer: Going to the actual workplace to observe processes and engage with employees
A Gemba walk involves going to the actual place where work is done to observe, understand, and identify improvement opportunities firsthand.
What does the DMAIC acronym stand for?
Answer: Define, Measure, Analyze, Improve, Control
DMAIC stands for Define, Measure, Analyze, Improve, and Control, which are the five phases of the Six Sigma improvement methodology.