Preliminary data analyses indicate that you can reasonably consider the assumptions for using pooled t-procedures Fraud Firearms satisfied. Independent random samples of released prisoners in the fraud and firearms offense categories yielded the 9.1 5.9 19.7 12.9 following information on time served, in months. Obtain a 90% confidence interval for the difference between the mean 9.8 5.6 22.8 15.1 times served by prisoners in the fraud and firearms offense categories. 17.3 16.7 20.9 12.6 6.4 13.1 24.6 23.8 15.8 14.3 12.2 13.9 (Note: X1 = 11.4, s, = 4.60, x2 = 17.85, and $2 = 5.00.) The 90% confidence interval is from to (Round to three decimal places as needed.)