Lean Six Sigma Green Belt Certification FREE Lean Six Sigma Green Belt Assessment Questions and Answers 2 — Questions and Answers
Question 1: Which phase of DMAIC focuses on identifying the root cause of a problem?
- Define
- Measure
- Analyze (Correct answer)
- Improve
Correct answer: Analyze
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?
- 3.4 DPMO (Correct answer)
- 34 DPMO
- 233 DPMO
- 6,210 DPMO
Correct answer: 3.4 DPMO
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?
- Manpower
- Measurement
- Money (Correct answer)
- Mother Nature
Correct answer: Money
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?
- To calculate process capability
- To provide a high-level overview of a process (Correct answer)
- To determine sample size
- To track defect rates over time
Correct answer: To provide a high-level overview of a process
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?
- Chi-square test
- Paired t-test
- Two-sample t-test (Correct answer)
- ANOVA
Correct answer: Two-sample t-test
A two-sample t-test compares the means of two independent groups when the data follows a normal distribution.
Question 6: What does the acronym VOC stand for in Lean Six Sigma?
- Value of Change
- Voice of the Customer (Correct answer)
- Variation of Control
- Volume of Complaints
Correct answer: Voice of the Customer
VOC stands for Voice of the Customer, which captures customer needs, expectations, and preferences to drive improvement efforts.
Lean Six Sigma Green Belt Certification FREE Lean Six Sigma Green Belt Assessment Questions and Answers 2
Which phase of DMAIC focuses on identifying the root cause of a problem?