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Critical Values for the Wilcoxon Signed Rank Statistic

Volume 6, Issue 3
Summer 1996
Peter Mitic, Wessex Institute of Technology, Southampton, England

Tables of the Wilcoxon signed rank statistic T are sometimes inaccurate. This article presents a way to generate accurate tables that are much more extensive than have been produced to date. The method is also used to provide a measure of significance for experimental values of T that are table independent. A method of approximating the Wilcoxon statistic by a normal distribution is briefly assessed.

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