Answer to Question #68502 in Statistics and Probability for DEBORA NORBERT

Question

The following table shows the pesticide residue levels (ppb) in blood samples from
four populations of human subjects. Use the Kruskal-Wallis test to test at the
0:01 level of signicance the null hypothesis that there is no dierence among the
populations with respect to median level of pesticide residue.
Population
A B C D
10 4 15 7
37 35 5 11
12 32 10 10
31 19 12 8
11 33 6 2
9 18 6 5
44 11 9 4
12 7 11 5
15 32 9 2
42 17 14 6
23 8 15 3