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Power Under Normality of Several Nonparametric Tests

1954; Institute of Mathematical Statistics; Volume: 25; Issue: 3 Linguagem: Inglês

10.1214/aoms/1177728732

2168-8990

W. J. Dixon,

Statistical Methods in Clinical Trials

Presented are tabulations of the power and power efficiency of four nonparametric tests (rank-sum, maximum deviation, median, and total number of runs) for the difference in means of two samples drawn from normal populations with equal variance. The cases considered are for equal sample sizes of three, four and five observations and alternatives $\delta = | \mu_1 - \mu_2 |/\sigma$.