Which type of sampling plan uses defective/non-defective decisions rather than quantified measurements?

Which type of sampling plan uses defective/non-defective decisions rather than quantified measurements?

• A. Attribute sampling plans
• B. Variable sampling plans
• C. Acceptance sampling plans
• D. Process sampling plans

Answer: (C)

Content relies on classifying each item as defective or non-defective rather than taking and comparing numeric measurements. That binary, pass/fail type decision is the hallmark of an attribute-based approach. When you inspect a sample and count how many defectives appear to decide whether to accept or reject the whole lot, you’re using an attribute sampling plan. This fits within acceptance sampling, but the defining feature is the defective/non-defective classification rather than measuring a continuous value. If you were weighing or measuring dimensions and using those numerical values against tolerances to decide accept/reject, you’d be in a variable sampling plan. Process sampling plans, meanwhile, focus on monitoring production processes with sampling data during manufacturing.

Content relies on classifying each item as defective or non-defective rather than taking and comparing numeric measurements. That binary, pass/fail type decision is the hallmark of an attribute-based approach. When you inspect a sample and count how many defectives appear to decide whether to accept or reject the whole lot, you’re using an attribute sampling plan. This fits within acceptance sampling, but the defining feature is the defective/non-defective classification rather than measuring a continuous value. If you were weighing or measuring dimensions and using those numerical values against tolerances to decide accept/reject, you’d be in a variable sampling plan. Process sampling plans, meanwhile, focus on monitoring production processes with sampling data during manufacturing.