Using the table given below, determine the lower- and upper-tail critical values for the Wilcoxon rank sum test statistic T, in each of the following two-tail tests. a. a = 0.10, n, = 8, nz = 8 b. a = 0.05, n, = 8, n2 = 8 c. a = 0.01, n, = 8, ng = 8 d. Given your results in (a) to (c), what do you conclude regarding the width of the region of non-rejection as the selected level of significance a gets smaller? E Click the icon to view the table of critical values for the Wilcoxon rank sum test. Critical values for the wil a. The lower-tail critical value is 55 and the upper-tail critical value is 81]. (Type whole numbers.) b. The lower-tail critical value is 51 and the upper-tail critical value is 85. (Type whole numbers.) Lower and upper critical values T, of Wilkcoxon rank sum test c. The lower-tail critical value is 45 and the upper-tail critical value is 91 (Type whole numbers.) One tail Two tail 4 0.05 0.10 d. The width of the region of non-rejection as the selected level of significance a gets smaller. 0.025 0.05 0.01 902