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

Question 1

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

Accepted Answer

Analyze

Answer

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

Question 2

What does a sigma level of 6 represent in terms of defects per million opportunities?

Accepted Answer

3.4 DPMO

Answer

A Six Sigma process produces no more than 3.4 defects per million opportunities, accounting for a 1.5 sigma shift.

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, Method, Machine, Material, Measurement, and Mother Nature (Environment); Money is not included.

Question 4

What is the primary purpose of a SIPOC diagram?

Accepted Answer

To provide a high-level overview of a process

Answer

A SIPOC diagram maps Suppliers, Inputs, Process, Outputs, and Customers to give a high-level view of a process before detailed analysis.

Question 5

Which statistical test would a Green Belt use to compare means of two independent groups with normal data?

Accepted Answer

Two-sample t-test

Answer

A two-sample t-test compares the means of two independent groups when the data follows a normal distribution.

Lean Six Sigma Green Belt Certification Practice Test