A single-sampling plan using a sample size of 50 on a lot size of 2,000 has the following performance: Today the company making the purchase receives two lots of 2,000 items and the inspection department is in a big hurry.Which action will result in an identical AOQL for the purchasing company?

Question

A single-sampling plan using a sample size of 50 on a lot size of 2,000 has the following performance:  Today the company making the purchase receives two lots of 2,000 items and the inspection department is in a big hurry.Which action will result in an identical AOQL for the purchasing company?

Quizplus · Accepted Answer

A single-sampling plan with a sample size of 50 and a lot size of 2,000 has been established with a specific AOQL. Taking a random sample of 50 from each lot and accepting or rejecting each lot based on the results will maintain the same AOQL as the established plan. Option A reduces the sample size by half, which is likely to lead to a lower level of confidence in the inspection results. Option B involves taking a sample from only one lot and making a decision about another lot based on the results. This approach does not consider the variability between the two lots, which may lead to incorrect decisions. Option C doubles the sample size, which may increase the level of confidence in the inspection results but is not necessary to maintain the same AOQL as the established plan.

A Single-Sampling Plan Using a Sample Size of 50 on a Lot