The information below is based on independent random samples taken from two normally distributed populations having equal variances. Based on the sample information, determine the 90% confidence...

Extracted text: The information below is based on independent random samples taken from two normally distributed populations having equal variances. Based on the sample information, determine the 90% confidence interval estimate for the difference between the two population means. n = 18 n2 = 11 X = 52 X2 = 47 S1 = 5 S2 = 4 The 90% confidence interval iss(4 -2)s (Round to two decimal places as needed.)