Computer Program for Single Sampling Plans by Variables with Unknown Lot Standard Deviation

Abstract

The paper aims to conceive a computer program that can be used at the design as well as at the application of the single sampling plans by variables in the case when the lot standard is unknown. The developed program calculates first the plan parameters and then, by means of the sample measurements provided by the user, makes the decision about the lot acceptance or rejection. The program can be used for quality characteristics with one single or two specification limits. After the description of the program, examples that cover all cases of its use there are presented.