IASSC Certified Lean Six Sigma Black Belt (ICBB) — Question 30

Replication is used in DOE __________________.

Answer options

• A. To estimate the error on inherent variation in the process.
• B. To identify the factors.
• C. To set the levels.
• D. To determine whether two factors are interacting or not

Correct answer: A

Explanation

The correct answer is A because replication helps in estimating the error associated with inherent variation, providing insight into the reliability of the results. Options B, C, and D do not accurately describe the role of replication, as they focus on identifying factors, setting levels, and determining interactions, respectively.