The data to the right show the average retirement ages for a random sample of workers in Country A and Country A Country B a random sample of workers in Country B. Complete parts a and bi Sample mean 63.6 years 65.5 years Sample size 40 40 Population standard deviation 4.6 years 4.9 years a. Perform a hypothesis test using o = 0.10 to determine if the average retirement age in Country B is higher than it is in Country A. Let population 1 be the workers in Country A and population 2 be the workers in Country B. Identify the null and alternative hypotheses. Choose the correct answer below. OA. Ho: H1 -H2 20 OB. HO H1 - H2 # 0 H1 H1 - H2 10 H1: H1 - H2 20 Calculate the appropriate test statistic. The test statistic is Round to two decimal places as needed.) Determine the appropriate critical value(s) The critical value(s) is(are) Round to two decimal places as needed. Use a comma to separate answers as needed.) Since the test statistic in the rejection region, Ho There is evidence to conclude that the average retirement age in Country B is higher than it is in Country A. b. Determine the p-value and interpret the results. The p-value is (Round to three decimal places as needed.) Since the p-value is Ho. There is evidence to conclude that the average retirement age in Country B is higher than it is in Country A