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Extended Tables of Critical Values for Wilcoxon's Test Statistic

L. R. Verdooren
Biometrika
Vol. 50, No. 1/2 (Jun., 1963), pp. 177-186
Published by: Oxford University Press on behalf of Biometrika Trust
DOI: 10.2307/2333758
Stable URL: http://www.jstor.org/stable/2333758
Page Count: 10
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Extended Tables of Critical Values for Wilcoxon's Test Statistic
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Abstract

New tables of exact critical values of Wilcoxon's rank sum test statistic W for the two-sample problem are presented for lower significance levels 0.001, 0.005, 0.01, 0.025, 0.05, 0.10 and sample sizes $m \leqslant n = 1 (1) 25$. Two approximations for calculating $\Pr(W \leqslant W)$ are discussed. When ties are present in the samples, one can use an approximation. In the Appendix the errata are given for errors found in earlier published tables.

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