Question: A group of men and women smokers were asked at what age they started smoking. Using the Wilcoxon rank sum test at the .01 level, determine if there is a significant difference in the starting ages, based on gender. State the hypotheses and identify the claim, find the critical value(s), compute the test value, make the decision, and summarize the results.

Females Males

14 14

15 12

22 15

18 16

17 16

22 13

19 12

20 18

21 17

13 19