Abstract
Abstract Double sample tests are presented for testing one-sided hypotheses about the mean of a normal population, based on the statistics suggested by Bulgren, Dykstra and Hewett [4]. Tables of decision values are given based on the criterion that the power curves of the double sample test and the corresponding single sample test are approximately the same. A discussion of the numerical methods is presented, as well as a comparison of expected sample sizes for a particular example.
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