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Preliminary analyses indicate that you can consider the assumptions for using Dynamic nonpooled t-procedures satisfied. Researchers obtained the following data on the number of acute 9 6 6 8 postoperative days in the hospital using the dynamic and static systems. Obtain a 90% confidence 8 8 7 6 interval for the difference, j - 2, between the mean numbers of acute postoperative days in the Static hospital with the dynamic and static systems. (Note: x, = 7.17, S, =1.19, x2 = 11.33, and $2 = 3.88) 9 9 10 8 14 18 The 90% confidence interval is from to (Round to three decimal places as needed.)