Specify the Rejection Region for the Wilcoxon Signed Rank Test $$n = 25 , \alpha = .05$$

Essay

Specify the rejection region for the Wilcoxon signed rank test in the following situation. $$n = 25 , \alpha = .05$$
$H _ { 0 }$ : Two probability distributions, 1 and 2, are identical
$H _ { \mathrm { a } }$ : Probability distribution of population 1 is shifted to the right of the probability distribution for population 2