Assessment 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 Assessment flashcards as text
During a measurement system assessment, an appraiser consistently measures parts 0.5 mm higher than the true reference value across all ranges. This error is classified as:
Answer: Bias
Bias is the systematic difference between the observed average measurement and the true (reference) value across all measurements.
A process capability assessment yields Cp = 1.8 and Cpk = 0.9. What does this combination indicate?
Answer: The process has adequate spread but is significantly off-center
High Cp with low Cpk indicates the process has sufficient potential capability (spread fits within spec) but is poorly centered relative to specification limits.
Which assessment approach quantifies the financial impact of poor quality, categorizing costs into prevention, appraisal, internal failure, and external failure?
Answer: Cost of Poor Quality (COPQ) analysis
COPQ analysis uses the PAF (Prevention, Appraisal, Failure) model to categorize and quantify quality-related costs.
A linearity assessment of a measurement gauge shows that bias increases as the measured value increases. What corrective action is most appropriate?
Answer: Recalibrate the gauge across its full operating range
Linearity error (bias varying with the magnitude of measurement) is corrected by calibrating the gauge across its entire operating range, not just at one point.
During a process assessment, a Black Belt calculates a Z-score of 2.5 for the lower specification limit and 1.5 for the upper specification limit. What is Cpk?
Answer: 0.50
Cpk = min(Z_LSL, Z_USL) / 3 = min(2.5, 1.5) / 3 = 1.5 / 3 = 0.50.
A Black Belt is assessing organizational readiness for a Six Sigma deployment. Which tool evaluates the maturity of processes against a defined capability framework?
Answer: Process maturity assessment (e.g., CMMI)
Process maturity models like CMMI assess an organization's process capability across defined maturity levels, from initial to optimized.
In a stability assessment, which pattern on a control chart indicates a process mean has shifted and the shift is statistically significant?
Answer: Both A and B are valid signals
Both a single point beyond 3-sigma limits and eight consecutive points on one side of the centerline are valid Western Electric rules indicating a statistically significant process shift.