What is the 95% confidence interval for the difference in the population means using paired samples given the sample data: xd= 2.05, sd= 0.75, n=16 D. [1.65 , 2.45] B. [1.59, 2.51] A. [1.73, 2.37] C. [1.84, 2.26]
What is the 95% confidence interval for the difference in the population means using paired samples given the sample data: xd= 2.05, sd= 0.75, n=16 D. [1.65 , 2.45] B. [1.59, 2.51] A. [1.73, 2.37] C. [1.84, 2.26]
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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2. What is the 95% confidence interval for the difference in the population means using paired samples given the sample data: xd= 2.05, sd= 0.75, n=16
D. [1.65 , 2.45]
B. [1.59, 2.51]
A. [1.73, 2.37]
C. [1.84, 2.26]
4. A test is conducted on a new drug treatment to improve patient’s memories. The scores of the 9 subjects before and after the new treatment are given on the table.
| Before | 55 | 57 | 57 | 64 | 64 | 67 | 70 | 71 | 71 |
| After | 57 | 63 | 67 | 67 | 70 | 72 | 73 | 80 | 81 |
What is the 95% confidence interval for the improvement of test scores after the new treatment is given to the patients?
A. [3.63 , 8.37]
C. [3.35 , 8.65]
B. [3.69 , 8.31]
D. [3.17 , 8.83]
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Transcribed Image Text:xa
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