Preliminary analyses indicate that you can consider the assumptions for using no

Question

Preliminary analyses indicate that you can consider the assumptions for using nonpooled t-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 90% confidence interval for the difference, mu_1 - mu-2 between the mean numbers of acute postoperative days in the hospital with the dynamic and static systems. The 90% confidence interval is from Q to (Round to three decimal places as needed.)

Explanation / Answer

alpha / 2 = 0.05 df= 12+6-2 = 16

t =1.746

I: 7.17 - 10.00 +/- 1.746 * SRQT [ 1.80^2 / 12 + 3.03^2 / 6 ]

I: -2.83 +/- 2.343

-5.173 < miu1 - miu2 < -0.487

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---