8.2 please show how the problem was worked

Construct a 90% confidence interval for , - ., with the sample statistics for mean cholesterol content of a hamburger from two fast food chains and confidence interval construction formula below. Assume the populations are approximately normal with unequal variances. Stats x, = 58 mg, s, = 3.83 mg, n, = 12 X2 = 46 mg, $2 = 2.25 mg, nz = 9 In NN Confidence interval when ( * , - *2 ) - to my + n2 = Hy - H2 = (X1 -X2) + to + variances are not equal d.f. is the smaller of n, - 1 or n2 - 1 Enter the endpoints of the interval. = My - H2