Certified Six Sigma Black Belt MCQ 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 Certified Six Sigma Black Belt MCQ flashcards as text
Which chart is BEST suited for monitoring the proportion of defective items in samples of varying size?
Answer: p-chart
The p-chart tracks the proportion of nonconforming units and accommodates variable sample sizes.
In Design of Experiments, what does a 2^(k-p) notation represent?
Answer: Fractional factorial design with k factors and p generators
2^(k-p) denotes a fractional factorial where k is the number of factors and p defines the fraction (2^-p).
A process has Cp = 1.5 but Cpk = 0.9. What does this indicate?
Answer: The process has adequate spread but is off-center
Cp > Cpk indicates the process has sufficient potential capability but the mean is not centered between specification limits.
Which hypothesis test is appropriate when comparing the variances of two independent normal populations?
Answer: F-test (Levene's or Bartlett's)
The F-test compares two population variances; Levene's or Bartlett's tests are common implementations.
In a SIPOC diagram, what does the 'S' represent?
Answer: Suppliers
SIPOC stands for Suppliers, Inputs, Process, Outputs, Customers — Suppliers provide the inputs to the process.
What is the primary purpose of a Gauge R&R study?
Answer: Determine if measurement system variation is acceptable relative to process variation
Gauge R&R quantifies repeatability and reproducibility to assess whether the measurement system is adequate.
Which DMAIC phase involves piloting solutions and verifying they address the root cause before full deployment?
Answer: Improve
The Improve phase is where solutions are developed, piloted, and verified to confirm they effectively address root causes.