Suppose a Wilcoxon matched-pairs signed-ranks test with N = 60 produced a sum of thenegative ranks of 643. A z value of leads to the conclusion that the null hypothesisshould be .
A) 2.00, rejected at the .05 level
B) 0.02, retained
C) 7.82, rejected at the .001 level

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The Wilcoxon matched-pairs signed-ranks test is a non-parametric test used to compare two related samples. The decision to reject or retain the null hypothesis is based on the z value. A z value of 2.00 typically corresponds to a p-value less than .05, leading to the rejection of the null hypothesis at the .05 level.

Suppose a Wilcoxon Matched-Pairs Signed-Ranks Test with N = 60