IASSC Certified Lean Six Sigma Yellow Belt

Here you have the best Six Sigma ICYB practice exam questions

  • You have 118 total questions to study from
  • Each page has 5 questions, making a total of 24 pages
  • You can navigate through the pages using the buttons at the bottom
  • This questions were last updated on October 13, 2025
  • This site is not affiliated with or endorsed by Six Sigma.
Question 1 of 118
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 118
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 3 of 118
The DMAIC approach to problem solving stands for Define, __________, Analyze, Improve and Control.
    Correct Answer: B

Question 4 of 118
Voice of the Customer is a Lean Six Sigma technique to determine the ___________ attributes of a product or service.
    Correct Answer: C

Question 5 of 118
Benefits and working conditions would be primarily the concern of which of the following?
    Correct Answer: B