For the large-sample approximation to the Wilcoxon signed-rank test, derive the mean and
Chapter 15, Problem 15-58(choose chapter or problem)
For the large-sample approximation to the Wilcoxon signed-rank test, derive the mean and standard deviation of the test statistic used in the procedure.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer