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. Assuming that W follows a normal distribution,the value of the test statistic is _____.

A) 4.07
B) −4.07
C) −12.07
D) 12.07