Lean Six Sigma Yellow Belt Certification The Improve Phase 4

Question 1

A project team brainstorms 15 possible solutions. Which tool would best help them narrow the list to the top 3 for further evaluation?

Accepted Answer

Multi-voting or prioritization matrix

Answer

Multi-voting or a weighted prioritization matrix helps teams quickly narrow a large list of options by scoring feasibility and impact.

Question 2

In the context of the Improve phase, what does 'solution scalability' mean?

Accepted Answer

The solution can be expanded to other areas or processes successfully

Answer

Scalability means the solution works not just in the pilot but can be replicated across similar processes or locations.

Question 3

A team implements a new process and measures a defect rate of 3.2% versus the pre-improvement rate of 6.8%. What type of evidence does this represent?

Accepted Answer

Quantitative data-based evidence of improvement

Answer

Comparing measured defect rates before and after implementation provides quantitative, data-driven evidence of improvement.

Question 4

Which statement about a kaizen event is most accurate?

Accepted Answer

It is a focused, short-duration team effort to rapidly improve a specific process

Answer

A kaizen event is an intensive, typically 3–5 day workshop where a cross-functional team makes rapid, targeted process improvements.

Question 5

A team wants to reduce defects caused by operator error. Which improvement is most likely to be sustainable long term?

Accepted Answer

Installing a poka-yoke device that physically prevents the error

Answer

Physical poka-yoke devices prevent errors automatically and do not rely on human memory or behavior, making them the most durable solution.

Lean Six Sigma Yellow Belt Certification Practice Test

Lean Six Sigma Yellow Belt Certification Practice Test

Lean Six Sigma Yellow Belt Certification The Improve Phase 4