Preliminary analyses indicate that you can consider the assumptions for using nonpooledt-procedures satisfied. Researchers obtained the following data on the number of acute postoperative days in the hospital using the dynamic and static systems. Obtain a 95% confidence interval for thedifference, mu 1 minus mu 2

12, between the mean numbers of acute postoperative days in the hospital with the dynamic and static systems.(Note: x overbar 1x1equals =6.83, s 1 equals

=1.95, x overbar x2equals =9.83, and s 2 equals =4.17

The 95 % confidence interval is from _______? to ________?

(Round to three decimal places asneeded.)

Dynamic

9-4-6--9-6-4

8-8-8-8-8-4

Static

7-6-9-7-14-16