Hi there please help and show calculations. Thanks

Question 2 of 3 A random sample of 77.1 : 19 securities in EconomyA produced mean returns of i 1 : 5.5% with 51 : 2.2% while another random sample of R2 : 18 securities in Economy B produced mean returns of i2 : 4.6% with 32 : 1.8%. At a : 0.05, can we infer that the returns differ significantly between the two economies? Assume that the samples are independent and randomly selected from normal populations with equal population variances (0' 12 : 0' 22). T-Distribution Table a. Calculate the test statistic. t 0.000 Round to three decimal places if necessary b. Determine the critical value(s) for the hypothesis test. + Round to three decimal places if necessaryc. Conclude whether to reject the null hypothesis or not based on the test statistic. O Reject O Fail to Reject