A Fund Manager Wants to Know If the Annual Rate

Multiple Choice

A fund manager wants to know if the annual rate of return is greater for growth stocks (sample 1) than for value stocks (sample 2) . The fund manager collects data on the returns of growth and value funds. Below are the sample sizes and rank sums for the Wilcoxon rank-sum test. Because both sample sizes are at least 10, the sampling distribution of W can be approximated by the normal distribution with a mean and standard deviation of ________, respectively.

A) 434.74 and 8100
B) 8100 and 434.74
C) 8100 and 189000
D) 189000 and 8100