10-2. The following information is based on independent random samples taken from two normally distributed populations having equal variances: n = 24 x = 130 X1 $1 = 19 n = 28 x = = 125 $2 = 17.5 8700 Based on the sample information, determine the 95% confidence interval estimate for the difference between the two population means.

10-2. The following information is based on indenendent ran d pop Bas 1% con veen the two population means