ASQ Certified Quality Engineer (CQE) — Question 60

Analysis of data on all product returns is important because
I. Failure rates change with length of product usage.
II. Changes in design and in customer use are often well reflected.
III. Immediate feedback and analysis of product performance becomes available.

Answer options

• A. I only
• B. I and III only
• C. II and III only
• D. I, II and III

Correct answer: D

Explanation

The correct answer is D because all three statements highlight significant reasons for analyzing product return data. Statement I emphasizes the correlation between failure rates and product usage duration, statement II points out that design and usage changes can be observed through return data, and statement III underscores the availability of immediate feedback regarding product performance. Each of these factors plays a critical role in improving product quality and customer satisfaction.