Lean Six Sigma Yellow Belt Certification Lean Six Sigma Yellow Belt Six Sigma Fundamentals 1

Question 1

Which of the following best describes a 'defect' in Six Sigma terminology?

Accepted Answer

A product or service that fails to meet customer specifications

Answer

In Six Sigma, a defect is defined as any output that fails to meet the customer's requirements or specifications. This definition keeps the focus on customer value rather than internal standards.

Question 2

What does 'sigma level' measure in a Six Sigma process?

Accepted Answer

The capability of a process to produce defect-free output

Answer

Sigma level is a statistical measure of process capability — specifically how well a process performs relative to its specification limits. A higher sigma level means fewer defects per million opportunities.

Question 3

In the DMAIC framework, during which phase are root causes of a problem identified?

Accepted Answer

Analyze

Answer

The Analyze phase is where teams use statistical tools and cause-and-effect analysis to identify the root causes of defects or process variation, moving beyond symptoms to underlying issues.

Question 4

What is the purpose of a 'baseline measurement' in Six Sigma?

Accepted Answer

To document the current process performance before changes are made

Answer

A baseline measurement captures the current state of process performance before any improvements are applied. It provides a reference point to objectively evaluate whether changes made during the Improve phase are effective.

Question 5

Which Six Sigma concept refers to any activity that consumes resources but does not add value for the customer?

Accepted Answer

Waste

Answer

Waste (also called 'muda' in Lean) refers to activities or steps that consume time, money, or resources without creating value for the customer. Eliminating waste is central to both Lean and Six Sigma improvement efforts.

Lean Six Sigma Yellow Belt Certification Practice Test

Lean Six Sigma Yellow Belt Certification Practice Test

Lean Six Sigma Yellow Belt Certification Lean Six Sigma Yellow Belt Six Sigma Fundamentals 1