The scores given are husband-wife scores on a marketing measure. Use the Wilcoxon matched-pairs signed rank test to determine whether the wives’ scores are significantly higher on the marketing measure than the husbands’. Assume that α = .01.
Husbands ... Wives
27 ...... 35
22 ...... 29
28 ...... 30
19 ...... 20
28 ...... 27
29 ...... 31
18 ...... 22
21 ...... 19
25 ...... 29
18 ...... 28
20 ...... 21
24 ...... 22
23 ...... 33
25 ...... 38
22 ...... 34
16 ...... 31
23 ...... 36
30 ...... 31