LSSMBB Exam - Free Six Sigma Questions and Answers

Question #6 (Topic: Single Topic)

In a statistical analysis, the beta risk (־²) is:

A. The probability of rejecting the null hypothesis when it is true B. Always equal to 0.10 C. Driven by the cost of sampling D. The probability of failing to reject the null hypothesis when it is false

Answer: D

Question #7 (Topic: Single Topic)

Sigma Saving and Loans processes loans and leases from around the world. The CEO wants to know if the current cycle time for processing is less than 9.5 days
on average. To test the claim that the average cycle time is less than 9.5 days, use:

A. A 1-sample T-test B. A 2 sample T-test C. A One-way ANOVA D. A Chi-square test of means

Answer: A

Question #8 (Topic: Single Topic)

Two different samples were pulled randomly from the same population. One sample is size n=10 and the other is size n=100. A two-sided confidence interval for
the mean was calculated separately for each.
How will the intervals compare?

A. The confidence interval for size n=10 will be smaller. B. The confidence interval for size n=10 will be larger. C. The confidence intervals will be the same for both n=10 and n=100. D. There is not enough information given.

Answer: B

Question #9 (Topic: Single Topic)

The purpose of a screening experiment using DOE is to?

A. Optimize the response by determining the best levels for the input factors B. Separating the ג€vital few from the trivial manyג€ C. Comparing various levels for one factor D. Finding a set of levels for the inputs that produce a robust product

Answer: B

Question #10 (Topic: Single Topic)

Based on the DOE results illustrated in the image below, and considering the Hierarchy of Effects, what terms should be left in the model? Use an alpha of 0.10.

A. Temp, Time, Temp*Pressure B. Temp, Time, Pressure, Temp*Pressure C. Time, Temp + Pressure D. Temp, Time

Answer: B

Six Sigma LSSMBB - Lean Six Sigma Master Black Belt Exam