A GROUP SAMPLING PLAN BASED ON TRUNCATED LIFE TEST FOR GAMMA DISTRIBUTED ITEMS

Abstract

In practice, a multiple number of items as a group can be tested simultaneously in a tester. This study deals with a group acceptance sampling plan under the truncated life test assuming that the lifetime of an item is distributed as Gamma with known shape parameter. The plan parameters such as the number of groups and the acceptance number will be determined by satisfying the consumer's and producer's risks at the specified ratio of true average life to the specified life, termination time and the number of testers. The tables are constructed and results are explained with examples. © 2009 Pakistan Journal of Statistics.