The significance level for a Wilcoxon signed rank test is 0.05.The alternative hypothesis is stated as: The location of population 1 is to the left of the location of population 2.The appropriate critical value for a sample of size 20 (that is the number of nonzero differences)is:
A)122
B)150
C)61
D)75

Question

Quizplus · Accepted Answer

For a Wilcoxon signed rank test with a significance level of 0.05 and an alternative hypothesis stating that the location of population 1 is to the left of population 2, the appropriate critical value for a sample size of 20 (number of nonzero differences) is 61. This can be found in a table of critical values for the Wilcoxon signed rank test. The other answer choices are not appropriate critical values for this scenario.

The Significance Level for a Wilcoxon Signed Rank Test Is