Assume that you have a sample of n, =8, with the sample mean X, =50, and a sample standard deviation of S, =4, and you have an independent sample of n2 = 12 from another population with a sample mean of X2 =39, and the sample standard deviation S2 = 8. Construct a 95% confidence interval estimate of the population mean difference between , and 2. Assume that the two population variances are equal. . . . 4.54 SH1 - H2 S 17.46 (Round to two decimal places as needed.)