Gupta has presented a method which, given samples of sizenfrom each ofknormal populations, selects a subset of thekpopulations which contains the population with the largest mean, with probability at leastP* The method guarantees thisP* no matter how small the differences between populations. The experimenter may only be interested in differences which are greater than some indifference. This difference allows either smaller subsets or a larger claimedP* for a given subset. An approximation using Gupta's and Sobel's tables and brief exact tables are presented.