Certified Six Sigma Black Belt Exam FREE Certified Six Sigma Black Belt Trivia Questions and Answers 2 — Questions and Answers
Question 1: In a Six Sigma project, what does the term 'entitlement' refer to?
- The best performance a process has demonstrated historically (Correct answer)
- The theoretical maximum output of a machine
- The contractual obligation to a customer
- The budget allocated to a improvement project
Correct answer: The best performance a process has demonstrated historically
Entitlement is the best performance level a process has consistently achieved in its history, serving as a realistic improvement target.
Question 2: Which tool is used to prioritize potential failure modes based on severity, occurrence, and detection?
- FMEA (Correct answer)
- Pareto chart
- Fishbone diagram
- Control chart
Correct answer: FMEA
Failure Mode and Effects Analysis (FMEA) uses severity, occurrence, and detection ratings to calculate a Risk Priority Number for prioritization.
Question 3: What is the primary purpose of a Multi-Vari study in Six Sigma?
- To identify the dominant source of variation among positional, cyclical, and temporal factors (Correct answer)
- To compare multiple suppliers simultaneously
- To validate measurement system accuracy
- To determine sample size for hypothesis testing
Correct answer: To identify the dominant source of variation among positional, cyclical, and temporal factors
A Multi-Vari study helps identify whether the largest source of variation is positional, cyclical, or temporal within a process.
Question 4: In Design of Experiments (DOE), what does a confounded effect mean?
- Two or more effects cannot be estimated independently of each other (Correct answer)
- The experiment produced no statistically significant results
- The response variable has too much noise
- The blocking factor was not properly randomized
Correct answer: Two or more effects cannot be estimated independently of each other
Confounding occurs when the effect of one factor cannot be distinguished from the effect of another factor or interaction.
Question 5: What is the key difference between a Type I and Type II error in hypothesis testing?
- Type I rejects a true null hypothesis; Type II fails to reject a false null hypothesis (Correct answer)
- Type I fails to reject a false null; Type II rejects a true null
- Type I occurs with large samples; Type II with small samples
- Type I relates to precision; Type II relates to accuracy
Correct answer: Type I rejects a true null hypothesis; Type II fails to reject a false null hypothesis
A Type I error (alpha) incorrectly rejects a true null hypothesis, while a Type II error (beta) fails to reject a null hypothesis that is actually false.
Question 6: Which control chart is most appropriate for monitoring the number of defects per unit when the sample size varies?
- u-chart (Correct answer)
- c-chart
- p-chart
- np-chart
Correct answer: u-chart
The u-chart tracks defects per unit and accommodates varying sample sizes, unlike the c-chart which requires constant sample size.
Certified Six Sigma Black Belt Exam FREE Certified Six Sigma Black Belt Trivia Questions and Answers 2
In a Six Sigma project, what does the term 'entitlement' refer to?