Double Sampling Plan Calculator. The first column shows the population sizes and the corresponding sample size. Conclusive with regard to rejecting or accepting 8.
Here is an explanatory video if you are wondering how it works it starts with an overview of the way to read the classic tables and then it goes on to show how this tool works. Using a double sampling plan the decision on acceptance or rejection is made as follows. TabDouble Sampling Plans AQL TABLE FORMAT It is arandom sampling inspection method by attributes based on the mathematical theory or probability.
If you find between 8 and 10 defects.
Where P_1 is. P 2 then the specifications of the plans must be reconsidered because the minimum probability defective determined by the two specification limits and the standard deviations is larger than the acceptable quality level p 1Consider a plan with a slightly larger probability of defective than p 1. To do this for a single sampling plan is relatively straightforward - just use the binomial distribution or Poission distribution if multiple defects per itme are possible and calculate the odds of accepting a lot. Using a double sampling plan the decision on acceptance or rejection is made as follows.
