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Bank A and Bank B have each developed an improved process for serving customers. The waiting period from the moment a customer enters until he or she reaches the counter needs to be shortened. A random sample of 10 customers is selected from each bank and the results (in minutes) are shown in the accompanying data table. Complete parts (a) through (d). ne Click the icon to view the table. a. Assuming that the population variances from both banks are equal, is there evidence of a difference in the mean waiting time between the two branches? (Use a = 0.01.) Determine the hypotheses. Let u, be the mean waiting time of bank A and u2 be the waiting time of bank B. Choose the correct answer below. sts OA. HO: H1 2 H2 OB. HO: My # H2 H1: My

H2 Find the test statistic. Test Statistic = (Round to two decimal places as needed.) Find the critical value(s). (Use a comma to separate answers as needed. Round to three decimal places as needed.) Choose the correct conclusion below. A. Do not reject Ho. There is insufficient evidence that the mean waiting time between O B. Reject Ho. There is insufficient evidence that the mean waiting time between the two the two branches differ. branches differ. O C. Do not reject Ho. There is sufficient evidence that the mean waiting time between O D. Reject Ho. There is sufficient evidence that the mean waiting time between the two the two branches differ. branches differ. b. Determine the p-value in (a) and interpret its meaning. Click to select your answer(s) and then click Check Answer. ? All parts showing