Referring to Problem 10.2, construct a 95% confidence interval estimate of the population mean difference between 1

Question:

Referring to Problem 10.2, construct a 95% confidence interval estimate of the population mean difference between μ1 and μ2.
In problem
Assume that you have a sample of n1 = 8, with the sample mean 1 = 42, and a sample standard deviation S1 = 4, and you have an independent sample of n2 = 15 from another population with a sample mean of 2 = 34 and a sample standard deviation S2 = 5.