Prep Flashcards
7 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 7 Prep flashcards as text
What is a 'Kaizen event' in Lean Six Sigma?
Answer: A focused, rapid improvement workshop typically lasting 3-5 days
A Kaizen event (also called a Kaizen blitz or rapid improvement event) is an intensive short-duration workshop where a cross-functional team implements improvements quickly.
When a control chart shows a run of 8 consecutive points on one side of the centerline, this is called:
Answer: A special cause signal
Eight consecutive points on one side of the centerline is a classic Western Electric rule violation indicating a process shift — a special cause that requires investigation.
What is the difference between 'precision' and 'accuracy' in measurement systems?
Answer: Accuracy is closeness to the true value; precision is consistency of repeated measurements
Accuracy (bias) refers to how close measurements are to the true value, while precision (repeatability) refers to how consistent repeated measurements are.
A process yield is 95%. What is the First Pass Yield (FPY) for a three-step process where each step has 95% yield?
Answer: 85.7%
FPY for multiple steps is calculated by multiplying individual step yields: 0.95 × 0.95 × 0.95 = 0.857 or approximately 85.7%.
Which of the following is NOT one of the five principles of Lean thinking?
Answer: Eliminate defects to zero
The five Lean principles are: Identify Value, Map the Value Stream, Create Flow, Establish Pull, and Pursue Perfection — 'eliminate defects to zero' is not one of them.
In regression analysis, what does an R² value of 0.85 indicate?
Answer: 85% of the variation in Y is explained by the X variable(s)
R² (coefficient of determination) represents the proportion of variation in the response variable explained by the model — 0.85 means 85% is explained.
What is the role of the 'Champion' in a Six Sigma organizational structure?
Answer: A senior leader who sponsors and removes barriers for Six Sigma projects
Champions are senior managers who select, sponsor, and support Six Sigma projects, ensure resources are available, and break down organizational barriers.