To test the claim that there is no difference in the lifetimes (in months) of two brands of video games, a sample of each was selected as indicated in the table. At "alpha" = 0.01, can we conclude that there is a difference?

Use the Wilcoxon rank sum test.

Brand A 42 34 39 42 22 47 51 34 41 39 28
Brand B 29 39 38 43 45 49 53 38 44 43 32

22 28 29 32 34 34 38 38 39 39 39 41 42 42 43 43 44 45 47 49 51 53

A A B B A A B B A B A A A A B B B B A B A B

1 2 3 4 5.5 7.5 10 10 10 12 13.5 15.5 17 18 19 20 21 22