Lean Six Sigma Master Black Belt

Here you have the best Six Sigma LSSMBB practice exam questions

You have 400 total questions across 80 pages (5 per page)
These questions were last updated on February 17, 2026
This site is not affiliated with or endorsed by Six Sigma.

Question 1 of 400

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?

Use the Shapiro-Wilk test

Proceed with the t-test

Use a non - parametric test

Discontinue the analysis

Question 2 of 400

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?

Kruskal - Wallis

Chi-Square

ANOVA

Bartlett or Levene

Question 3 of 400

Which of the following is a commonly used test that examines the association between multiple discrete variables?

Kruskal-Wallace Test

Shapiro-Wilkes Test

Student's t-Test

Chi-Square Test

Question 4 of 400

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?

Ho: ֲµ New - ֲµ Old ג‰₪ 5, Ha: ֲµ New - ֲµ Old > 5

Ho: ֲµ New - ֲµ Old=5, Ha: ֲµ New - ֲµ Old ג‰ 5

Ho: ֲµ New = 850, Ha: ֲµ New > 850

Ho: ֿƒ New ג‰₪ 7.7, Ha: ֿƒ New > 7.7

Question 5 of 400

Which of the following statistical procedures is appropriate when there is one continuous input variable variable (X) and one continuous output variable (Y)?

T-test

Chi-Square test

One-Way ANOVA

Correlation

About the Six Sigma LSSMBB Certification Exam

About the Exam

The Six Sigma LSSMBB (Lean Six Sigma Master Black Belt) validates your knowledge and skills. Passing demonstrates proficiency and can boost your career prospects in the field.

How to Prepare

Work through all 400 practice questions across 80 pages. Focus on understanding the reasoning behind each answer rather than memorizing responses to be ready for any variation on the real exam.

Why Practice Exams?

Practice exams help you familiarize yourself with the question format, manage your time, and reduce anxiety on the test day. Our LSSMBB questions are regularly updated to reflect the latest exam objectives.