ASQ Certified Six Sigma Black Belt (CSSBB) — Question 13

For a batch manufacturing process, while assessing short term process variation, which variation category(ies) should one need to focus on? (Note: There are 2 correct answers).

Answer options

• A. Variation within consecutive pieces
• B. Variation among consecutive batches
• C. Variation among groups of pieces
• D. Variation among the completed product

Correct answer: A, B

Explanation

Focusing on Variation within consecutive pieces and Variation among consecutive batches is crucial for short-term process variation assessment because these variations directly impact the consistency and quality of the manufacturing output. The other options, such as Variation among groups of pieces and Variation among the completed product, pertain more to long-term variability and may not reflect immediate process adjustments.