2. Determine the upper-tail critical values of t in each of the following tests assuming that the variances of the two populations are equal = 1.6905 a) a = .10, n1 = 16, n2 =21 b) a = .05, n1 = 20, n2 = 25 = 1.6801 c) a = .001, n1 = 10, n2 = 12 = 3.552 d) a = .05, n1 = 8, n2 =9 =1.7530 e) a = .01, n1 = 12, n2 = 12 = 2.5080 %3D %3D %3D %3D

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