Author Question: In a Wilcoxon signed rank test for matched pairs with n = 32, the rank sums of the positive and ... (Read 159 times)

bobthebuilder · **on:** Jul 24, 2018

In a Wilcoxon signed rank test for matched pairs with n = 32, the rank sums of the positive and negative differences are 367.5 and 160.5, respectively. The value of the standardized test statistic z is:
a. 3.764
b. 1.882
c. 1.391
d. 1.935
e. 1.986

Question 2

A nonparametric method to compare two populations, when the samples are matched pairs and the data are interval, and where the normality requirement necessary to perform the parametric test is unsatisfied, is the:
a. Wilcoxon rank sum test
b. sign test
c. matched pairs t-test
d. Wilcoxon signed rank test
e. matched pairs z-test