View Policies Current Attempt in Progress Use the t-distribution to find a confidence interval for a difference in means /1 - /2 given the relevant sample results. Give the best estimate for 1 - M2, the margin of error, and the confidence interval. Assume the results come from random samples from populations that are approximately normally distributed. A 99% confidence interval for M1 - /2 using the sample results X1 = 9.1, s1 = 2.0,n = 50 and X2 = 12.0, s2 = 5.3, n2 = 50 Enter the exact answer for the best estimate and round your answers for the margin of error and the confidence interval to two decimal places. Best estimate = M. Margin of error = i Confidence interval : i to eTextbook and Media