Certified Six Sigma Black Belt Exam Certified Six Sigma Black Belt Voice of the Customer (VOC) Questions and Answers 3

Question 1

What distinguishes a 'latent' customer need from a 'stated' customer need in VOC analysis?

Accepted Answer

Latent needs are unarticulated and customers may not be consciously aware of them

Answer

Latent needs are unspoken requirements that customers cannot easily articulate but that drive significant satisfaction when fulfilled.

Question 2

A Black Belt is designing a VOC study for a B2B product with a small customer base of 15 accounts. Which data collection method is most appropriate?

Accepted Answer

In-depth interviews with key stakeholders at each account

Answer

In-depth interviews are ideal for small B2B populations because they capture rich, detailed insights from each high-value account.

Question 3

When using a VOC table to organize customer feedback, which columns are typically included?

Accepted Answer

Customer statement, customer need, CTQ characteristic, and specification

Answer

A VOC table translates raw customer statements into structured needs, CTQ characteristics, and measurable specifications.

Question 4

Which metric best measures the gap between customer expectations and actual perceived performance?

Accepted Answer

Customer satisfaction gap score (expectation minus perception)

Answer

The gap score directly quantifies the difference between what customers expect and what they perceive they received.

Question 5

During a VOC analysis, a Black Belt finds that 80% of negative feedback traces back to three root issues. Which principle does this illustrate?

Accepted Answer

The Pareto principle

Answer

The Pareto principle states that roughly 80% of effects come from 20% of causes, guiding prioritization of the vital few issues.

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