Construct a 95 confidence interval estimate for the differen

Construct a 95% confidence interval estimate for the difference between two population means given the sample data below selected from two normally distributed populations with equal variances.

Sample 1 Sample 2

38 28 33 31 38 46

38 32 35 40 40 31

33 34 24 35 31 31

Solution

95% CI for difference: (-8.13, 1.90)