[10 marks] Irrespective of your answer to part b), specify the name of the suitable non- parametric test for this study. Let D1 be the distribution of bank rates and let D2 be the distribution of credit union rates. Carry out the chosen non-parametric test to determine whether D1 and D2 are identical versus the alternative that D1 is different from D2 (either shifted to the right or to the left of D2). Use =0.05. Follow all the steps for hypothesis testing indicated in the instructions section. Confirm your results using statCrunch. (Manual calculations and StatCrunch)