The Significance Level for a Wilcoxon Signed Rank Test Is

Multiple Choice

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) 37
B) 43
C) 52
D) 60
E) 70