Determine sample size and acceptance criteria for a new acceptance sampling plan
When you create an acceptance sampling plan, you must determine how many items to inspect from a lot of product, and determine how many defects/defective items are allowed in an acceptable lot.
Using your specifications for lot size, AQL, RQL, producer's risk (α), and consumer's risk (β), Minitab determines an appropriate sampling plan with a specific sample size and acceptance number.
Compare the probability of accepting or rejecting lots from alternative plans
After you create an acceptance sampling plan, you can vary the sample size and acceptance number to reduce overall sample size or to better match your inspection process. For example, your operators might prefer to sample items in quantities of 10 because that is more convenient.
You can compare plans by varying the sample size, the acceptance number, or both together, and examine how the risks of acceptance vary.