Question: A bank studies the mean time clerks spent with a customer. A sample of 13 male clerks spent a mean time of 1.4 minutes with each customer with s = .31. A sample of 14 female clerks spent a mean time of 1.7 minutes with each customer with s = .16. Be sure to test for equality of variances first. Test at the .05 level the claim that men and women clerks spend the same amount of time with each customer.