Preliminary data analyses indicate that you can consider the assumptions for using nonpooled t-procedures satisfied. Researchers obtained the data shown in the table on the number of acute postoperative days in the hospital using the dynamic and static systems. At the 10% significance level, do the data provide sufficient evidence to conclude that the mean number of acute postoperative days in the hospital is smaller with the dynamic system than with the static system? (Note: x₁ = 7.33, S₁ = 1.23, x₂ = 10.17, and s2 = 3.43) Click on the icon to view the data table.
Preliminary data analyses indicate that you can consider the assumptions for using nonpooled t-procedures satisfied. Researchers obtained the data shown in the table on the number of acute postoperative days in the hospital using the dynamic and static systems. At the 10% significance level, do the data provide sufficient evidence to conclude that the mean number of acute postoperative days in the hospital is smaller with the dynamic system than with the static system? (Note: x₁ = 7.33, S₁ = 1.23, x₂ = 10.17, and s2 = 3.43) Click on the icon to view the data table.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Preliminary data analyses indicate that you can consider the assumptions for using nonpooled t-procedures satisfied.
Researchers obtained the data shown in the table on the number of acute postoperative days in the hospital using the
dynamic and static systems. At the 10% significance level, do the data provide sufficient evidence to conclude that the
mean number of acute postoperative days in the hospital is smaller with the dynamic system than with the static
system?
(Note: x₁ = 7.33, s₁ = 1.23, x₂ = 10.17, and s₂ = 3.43)
Click on the icon to view the data table.
What are the hypotheses for the nonpooled t-test?
OA. Ho: H₁ H₂
Hai Hq> H2
OC. Ho: H₁ = H₂
H₂: H₁ <H₂
Find the test statistic.
t= (Round to three decimal places as needed.)
Find the critical value(s).
OB. Ho: H1 H₂
Hai H₁ H₂
the null hypothesis, meaning that the data
Q D. Hoi HSH2
Hai H₁ H₂
(Round to three decimal places as needed. Use a comma to separate answers as needed.)
What is the conclusion of the hypothesis test?
sufficient evidence to conclude that the
Transcribed Image Text:Data table
6
8
Dynamic
8
6
7 7
7 10 7
6 9 7
Static
6 9 11 7 14 14
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