Basic Flashcards
7 cards from real Lean Six Sigma Black 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 Basic flashcards as text
Which risk priority ranking method used in FMEA multiplies Severity, Occurrence, and Detection ratings together?
Answer: Risk Priority Number (RPN)
The Risk Priority Number (RPN) = Severity × Occurrence × Detection, and is used to prioritize failure modes for corrective action in FMEA.
A scatter plot shows a correlation coefficient (r) of −0.92. What does this indicate?
Answer: Strong negative relationship
A correlation coefficient of −0.92 indicates a strong negative linear relationship — as one variable increases, the other decreases substantially.
Which Lean tool uses visual signals (cards or bins) to authorize and trigger production or material replenishment?
Answer: Kanban
Kanban is a pull-based scheduling system that uses visual signals to authorize replenishment of materials or production only when needed.
In regression analysis, what does R² (coefficient of determination) measure?
Answer: The proportion of variance in Y explained by X
R² represents the proportion of the total variance in the response variable (Y) that is explained by the predictor variable(s) in the regression model.
The concept of 'Design for Six Sigma' (DFSS) is most closely associated with which methodology?
Answer: DMADV
DMADV (Define, Measure, Analyze, Design, Verify) is the DFSS methodology used to design new products or processes to Six Sigma capability from the start.
Which type of control chart is used to monitor the proportion of nonconforming units in a process with variable subgroup sizes?
Answer: p-chart
The p-chart monitors the proportion (fraction) of nonconforming units and accommodates variable subgroup sizes, unlike the np-chart which requires constant subgroup size.
A Black Belt applies a control plan after implementing process improvements. Which element is NOT typically included in a control plan?
Answer: Financial ROI of the project
A control plan documents what to measure, how to measure it, frequency, and reaction plans — financial ROI belongs in the project charter or business case, not the control plan.