What is Sampling Plans?

Sampling plans are statistical methods used to determine the quality of a production lot or batch by examining only a subset of the items. These plans specify the sample size and the acceptance criteria. If the sample meets the criteria, the entire lot is accepted; otherwise, the lot is rejected. Common types of sampling plans include single, double, and multiple sampling plans, each with its own rules for deciding whether to accept or reject a lot based on the sample's characteristics. They are widely used in manufacturing and quality control to reduce the cost and time associated with inspecting every item.