A researcher computes the Wilcoxon signed-ranks T test.She computes T = 68 using a sample of 24 participants.What is the decision for a two-tailed test at a .05 level of significance?
A) retain the null hypothesis
B) reject the null hypothesis
C) there is not enough information to answer this question

Question

Quizplus · Accepted Answer

Since the significance level is .05 for a two-tailed test, we need to compare T (68) with the critical values for n = 24 at .025 (upper tail) and -.025 (lower tail). The critical value for a two-tailed test at .025 level of significance and n = 24 is ± 68. Therefore, since T (68) exceeds the critical value of 68, we reject the null hypothesis.

A Researcher Computes the Wilcoxon Signed-Ranks T Test