Six Sigma Green Belt
Six Sigma Green Belt is a trademark of its owner, which is not affiliated with and does not endorse Test Treasure Publication or TTP Prep.
Six Sigma Green Belt is a trademark of its owner, which is not affiliated with and does not endorse Test Treasure Publication or TTP Prep.
10 sample questions for the Six Sigma Green Belt, with the correct answer and an explanation for each. No account needed. Try each one before you open the answer.
Sections covered on the exam: Overview — Six Sigma And The Organization, Leanprinciplesintheorganization, Overview: Six Sigma and the Organization, Define Phase, Projectidentification, Voiceofthecustomer, Projectmanagementbasics, Managementandplanningtools, Teamdynamicsandperformance, Measure Phase, Statisticaldistributions, Measurementsystemanalysis, Processandperformancecapability, Analyze Phase, Hypothesistesting, Rootcauseanalysis, Improve Phase, Implementationplanning, Leantools, Control Phase, Statisticalprocesscontrol, Sustainingimprovements, Leantoolsforprocesscontrol.
Question 1 · Overview — Six Sigma And The Organization
What is the primary reason for aligning a Six Sigma project with organizational goals?
Answer: C. To increase the chance of long-term impact
Projects aligned with organizational goals are more likely to receive support, show measurable success, and sustain improvements.
Question 2 · Voiceofthecustomer
Which of the following is an example of a VOC statement?
Answer: B. “I want faster delivery.”
VOC statements reflect customer language, needs, or expectations—this example is a classic customer expression of a need.
Question 3 · Measurementsystemanalysis
What is the purpose of Measurement System Analysis (MSA)?
Answer: C. Evaluate the accuracy and precision of measurement tools
MSA determines if the measurement system is reliable, repeatable, and reproducible.
Question 4 · Hypothesistesting
The power of a test refers to:
Answer: B. The ability to detect a true effect when it exists
Statistical power is the probability of correctly rejecting a false null hypothesis (avoiding Type II Error).
Question 5 · Leantools
Which Lean term describes a culture of continuous improvement?
Answer: B. Kaizen
Kaizen is the practice of ongoing, incremental improvement involving everyone in the organization.
Question 6 · Overview — Six Sigma And The Organization
Which of the following project types is most suitable for Six Sigma improvement?
Answer: A. Projects focused on reducing variation in a measurable process
Six Sigma is best suited for projects that aim to reduce variation, improve process stability, and enhance performance using measurable data.
Question 7 · Projectmanagementbasics
Which of the following elements is not typically included in a Six Sigma project charter?
Answer: B. Control chart
A control chart is a statistical tool used later in the project. A project charter includes a problem statement, scope, objectives, timeline, and business case.
Question 8 · Statisticaldistributions
Which visualization method is ideal for summarizing the spread and central tendency of continuous data?
Answer: C. Box Plot
Box plots show the median, quartiles, and potential outliers—providing a quick summary of data spread and symmetry.
Question 9 · Hypothesistesting
A p-value of 0.03 in a hypothesis test suggests:
Answer: B. The result is statistically significant at α = 0.05
Since the p-value (0.03) is less than 0.05, you reject the null hypothesis and conclude a statistically significant result.
Question 10 · Leantools
Which Lean principle encourages small, continuous improvements by all employees?
Answer: D. Kaizen
Kaizen promotes a culture of continuous, incremental improvement involving all levels of the organization.
TTP Prep has 200 Six Sigma Green Belt practice questions with explanations, timed and mock-exam modes, 101 flashcards, interactive lessons, a printable cheat sheet and a readiness score. Start free, no card needed.
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