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The following information is available for two random samples selected from two independent normal distributions. Sample 1: n1 = 21, S? = 91. 12 Sample 2: n2 = 32, S, = 37. 82 (1) At a 0.05 level of significance, test the hypothesis H. : of = 07 . What is the statistical decision? (2) Based on the result of the test of variances in the above question, if you were to conduct a test to determine whether there is evidence of a difference in the mean between the two populations (i.e. /1 # /2) , which test would you use? (1) Do not reject Ho. (2) separate variance t-test (Not pooled on t-test) O (1) Reject Ho (2) separate variance t-test (Not pooled on t-test) (1) Do not reject Ho. (2) equal variance t-test (pooled on t-test) O (1) Reject Ho. (2) equal variance t-test (pooled on t-test)