Three aspects of sampling are important:1. It is the purpose of acceptance sampling to sentence lots, not to estimate the lot quality.Most acceptance-sampling plans are not designed for estimation purposes.2. Acceptance-sampling plans do not provide any direct form of quality control.Acceptance sampling simply accepts and rejects lots. Even if all lots are of the samequality, sampling will accept some lots and reject others, the accepted lots being no better than the rejected ones. Process controls are used to control and systematicallyimprove quality, but acceptance sampling is not.3. The most effective use of acceptance sampling is not to “inspect quality into the product,” but rather as an audit tool to ensure that the output of a process conforms torequirements.