A Random Sample of 12 Men and 12 Women Were $z$

Multiple Choice

A random sample of 12 men and 12 women were asked to report the number of hours they watched television on a Wednesday evening. If a researcher wants to test the hypothesis that there is no difference in the amount of time spent watching television based on gender, what $z$ -values should be used for a two-tailed Wilcoxon rank sum test, at $\alpha = 0.05$ ?

A) $z = \pm 2.00$
B) $z = \pm 1.67$
C) $z = \pm 3.00$
D) $z = \pm 1.96$