Eight observations were randomly selected from two populations (population A and population B) that were not normally distributed. Use the .05 significance level, a two-tailed test, and the Wilcoxon rank-sum test to determine whether there is a difference between the two populations.
Population A 38,45,56,57,61,69,70,79$
Population B 26,31,35,42,51,52,57,62$