“…Sometimes, to reduce testing time, group acceptance sampling plans have been used. In this case the total number of items ͑n͒ to be tested is divided into equal-sized groups according to the number of available experimental testers, see, for example, Pascual and Meeker [6] or Vleck, Hendricks, and Zaretsky [7]. There are r items in each group, and there are a total of "g" groups, so that n = rg.…”