Lean Six Sigma Yellow Belt

Here you have the best Six Sigma LSSYB practice exam questions

  • You have 150 total questions to study from
  • Each page has 5 questions, making a total of 30 pages
  • You can navigate through the pages using the buttons at the bottom
  • This questions were last updated on October 9, 2025
  • This site is not affiliated with or endorsed by Six Sigma.
Question 1 of 150
When a process has proven itself to function at a Six Sigma level this means there are less than ________ defects per million opportunities.
    Correct Answer: C

Question 2 of 150
Six Sigma refers to a process whose output has at least 95% of its data points within 6 Standard Deviations from the Mean.
    Correct Answer: B

Question 3 of 150
Training cost is $3,000 and a project required an initial investment of $12,000. If the project yields monthly savings of $1,800 beginning after 3 months, what is the payback period in months (before money costs and taxes)?
    Correct Answer: C

Question 4 of 150
The ROI for a project is a measurement metric that stands for Return on Investment and is one of the methods used to measure the success of a Lean Six Sigma project.
    Correct Answer: A

Question 5 of 150
The DMAIC approach to problem solving stands for Define, __________, Analyze, Improve and Control.
    Correct Answer: B