January 2018
Intermediate to advanced
480 pages
236h 9m
English
Example G.1 raises the question: How can management change the sampling plan to reduce the probability of rejecting good lots and accepting bad lots? To answer this question, let us see how n and c affect the shape of the OC curve. In the Noise King example, a better single-sampling plan would have a lower producer’s risk and a lower consumer’s risk.
What would happen if we increased the sample size to 80 and left the acceptance level, c, unchanged at 1? We can use Table G.1. If the proportion defective of the lot is then and the probability of acceptance of the lot is only 0.809. Thus, the producer’s risk is 0.191. Similarly, if the probability of ...