Independent random samples of ten day students and ten evening students at a university showed the following age distributions.
Day Evening
26 32
18 24
25 23
27 30
19 40
30 41
34 42
21 39
33 45
31 35
Use a = 0.05 and test for any significant differences in the age distribution of the two populations. Use Wilcoxon Signed-Rank Test.