stats help please! with explanation if possible?

11)Two independent samples from different populations yield the following data: _ _ x1 = 45 x2 = 50 s1 = 3.7`s2 = 3.8 n1=50 n2=60 Find a 95% confidence interval for the difference between the population means then test that those means are equal at the 0.01 level of significance.