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Question 5 [1 point) The Director of training for a multinational grocery store is interested in determining whether different training methods have an effect on the productivity of service time by employees. She randomly assigns 12 recently hired employees to two groups of 6, of which the first received a training program X and the other received a training program Y. Upon completion of the training, the employees were evaluated on the time (in minutes) it took to serve a customer at a checkout counter. The results are as follows: Training Training Program X program Y Note that Program X has the larger variance. (1} Is there evidence of a difference in the variances of service times [in minutes} between employees trained in Training Program X and those trained in a Training program Y? Using a 0.09 level of significance, what is your decision on the Hypothesis test? (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. [JX # y} . which test would you use? 0 (1} Reject Ho (2} separate variance t-test (Not pooled on t-test} O (1} Do not reject Ho. [2} equal variance t-test [pooled on t-test} O (1} Do not reject Ho. (2) separate variance t-test (Not pooled on t-test} O (1} Reject Ho. (2} equal variance t-test (pooled on t-test)