Six Sigma LSSMBB - Lean Six Sigma Master Black Belt Exam
Page: 1 / 80
Total 400 questions
Question #1 (Topic: Single Topic)
You are about to run a t-test on shield thickness from 2 suppliers when you determine the data from one group is not normally distributed and cannot be
transformed.
Your next step would be to?
transformed.
Your next step would be to?
A. Use the Shapiro-Wilk test
B. Proceed with the t-test
C. Use a non - parametric test
D. Discontinue the analysis
Answer: C
Question #2 (Topic: Single Topic)
A manufacturing test process has 3 parallel machines performing exactly the same test. The data from this test process can be assumed to be normally distributed
and the variances within each machine are the same. To understand if there is a significant statistical difference in the average test value between machines, what
test should be used?
and the variances within each machine are the same. To understand if there is a significant statistical difference in the average test value between machines, what
test should be used?
A. Kruskal - Wallis
B. Chi-Square
C. ANOVA
D. Bartlett or Levene
Answer: C
Question #3 (Topic: Single Topic)
Which of the following is a commonly used test that examines the association between multiple discrete variables?
A. Kruskal-Wallace Test
B. Shapiro-Wilkes Test
C. Studentג€™s t-Test
D. Chi-Square Test
Answer: D
Question #4 (Topic: Single Topic)
An engineer is trying to increase a product characteristic mean from the current production 850ֳ… to above 855ֳ…. The standard deviation of the current process
and the proposed process are assumed to be the same, ֿƒCurrent = 7.7. The engineer wants to verify that the average difference of his new process as compared
to the old process is statistically significant and is greater than 5ֳ…. What are the correct statistical hypotheses for this engineering problem?
and the proposed process are assumed to be the same, ֿƒCurrent = 7.7. The engineer wants to verify that the average difference of his new process as compared
to the old process is statistically significant and is greater than 5ֳ…. What are the correct statistical hypotheses for this engineering problem?
A. Ho: ֲµ New - ֲµ Old ג‰₪ 5, Ha: ֲµ New - ֲµ Old > 5
B. Ho: ֲµ New - ֲµ Old=5, Ha: ֲµ New - ֲµ Old ג‰ 5
C. Ho: ֲµ New = 850, Ha: ֲµ New > 850
D. Ho: ֿƒ New ג‰₪ 7.7, Ha: ֿƒ New > 7.7
Answer: A
Question #5 (Topic: Single Topic)
Which of the following statistical procedures is appropriate when there is one continuous input variable variable (X) and one continuous output variable (Y)?
A. T-test
B. Chi-Square test
C. One-Way ANOVA
D. Correlation
Answer: D
