In a Wilcoxon signed rank sum test,the test statistic is calculated as T = 75.If there are n = 15 observations for which D≠ 0,and a two-tail test is performed at the 5% significance level,then:
A)reject the null hypothesis.
B)don't reject the null hypothesis.
C)the test results are inconclusive.
D)perform a parametric test.

Question

Quizplus · Accepted Answer

The critical value for a two-tailed test with n = 15 at the 5% significance level is approximately 25. Since T = 75 is greater than the critical value, we do not reject the null hypothesis.

In a Wilcoxon Signed Rank Sum Test,the Test Statistic Is