You Are Studying Two Normally Distributed Populations with Equal Variances

You are studying two normally distributed populations with equal variances.A random sample of size 10 is taken from each population.The sample from the first population gives the following measurements: 16,14,19,18,19,20,15,18,17,18.The sample from the second population gives the following measurements: 13,19,14,17,21,14,15,10,13,15.Compute the 95% confidence interval for the difference between two population means