Designing optimal double sampling plan using the weighted Poisson distribution

Purpose – The purpose of this paper is to present the optimal double sampling attribute plan using the weighted Poisson distribution. Design/methodology/approach – For the given AQL and LQL, sum of producer’s and consumer’s risks have been attained. Based on the weighted Poisson distribution, the sum of these risks has been optimized. Findings – In the final inspection, the producer and the consumer represent the same party. So, the sum these two risks should be minimized. In this paper, the sum of risks has been tabulated using the weighted Poisson distribution for different operating ratios. These tabulated values are comparatively less than the sum of risks derived using Poisson distribution. Originality/value – The sampling plan presented in this paper is particularly useful for testing the quality of finished products in shop floor situations.