Lean Six Sigma Green Belt Certification FREE LSSGB Questions and Answers 2

Question 1

Which phase of DMAIC focuses on identifying the root cause of a process problem?

Accepted Answer

Analyze

Answer

The Analyze phase uses data analysis and statistical tools to identify and verify the root causes of process defects.

Question 2

What does a process capability index (Cpk) of 1.33 indicate?

Accepted Answer

The process is capable with adequate margin

Answer

A Cpk of 1.33 indicates the process is capable and has sufficient margin between the process spread and specification limits.

Question 3

In a cause-and-effect diagram, which category is NOT one of the traditional 6 Ms?

Accepted Answer

Money

Answer

The traditional 6 Ms are Manpower, Methods, Machines, Materials, Measurements, and Mother Nature — Money is not included.

Question 4

What is the primary purpose of a SIPOC diagram in Lean Six Sigma?

Accepted Answer

To provide a high-level overview of a process

Answer

A SIPOC diagram maps Suppliers, Inputs, Process, Outputs, and Customers to give stakeholders a high-level view of the process scope.

Question 5

Which statistical test would you use to compare the means of two independent groups?

Accepted Answer

Two-sample t-test

Answer

A two-sample t-test compares the means of two independent groups to determine if there is a statistically significant difference.

Lean Six Sigma Green Belt Certification Practice Test