Abstract
In this paper the authors present the results of a sampling experiment to determine the power functions of the two-sample rank tests of WILCOXON, VAN DER WAERDEN and TERRY against shift alternatives for normal parent distributions, based on 2000 trials for each alternative. The sample sizes considered are m = n = 6 and m = n = 10. The powers of the three rank tests are compared with the power of the STUDENT t-test and with each other. The results indicate that in small samples (i) the power of the WILCOXON test is not much smaller than the power of the t-test and (ii) the normal scores tests are only slightly superior to the WILCOXON test, if at all.
Original language | English |
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Pages (from-to) | 55-68 |
Number of pages | 14 |
Journal | Statistica Neerlandica |
Volume | 21 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1967 |