A random sample of m = 17 securities in Economy A produced mean returns of i 1 = 5.6% with 31 = 1.9% while another random sample of 112 = 20 securities in Economy B produced mean returns of i 2 = 4.6% with 32 = 2%. At or = 0.01, can we infer that the returns differ signicantly between the two economies? Assume that the samples are independent and randomly selected from normal populations with equal population 1uariances ( or 12 = o 22). TDistribution Table a. Calculate the test statistic. t= E Round to three decimal places if necessary b. Determine the critical yaluejs) for the hypothesis test. Round to three decimal places if necessary c. Conclude whether to reject the null hypothesis or not based on the test statistic. C} Reject c} Fail to Reject