IASSC Certified Lean Six Sigma Black Belt (ICBB) Free Practice Exam Questions

84 real IASSC Certified Lean Six Sigma Black Belt (ICBB) exam questions with answers and AI explanations. Six Sigma certification prep — page 3 of 9.

1. Question 26: Who coined the concept ‘zero defects’?
2. Question 27: Which of the following is commonly used as a design tool in Design for Six Sigma (DFSS)?
3. Question 28: The concept of PLAN, DO, and SEE was developed by:
4. Question 29: Bias refers to:
5. Question 30: Replication is used in DOE __________________.
6. Question 31: What the major difference between a stem-and-leaf plot and a histogram?
7. Question 32: Identify the incorrect statement.
8. Question 33: Identify the correct option regarding PERT and CPM.
9. Question 34: Which of the following is not a disadvantage of the 5 Whys?
10. Question 36: ________________________ chart is used to count data (defects) with variable sub groups.