A study was conducted to measure the effectiveness of hypnotism in reducing pain. The measurements are centimeters on a pain scale before and after hypnosis. Assume that the paired sample data are simple random samples and that the differences have a distribution that is approximately nomal. Construct a 95% confidence interval for the mean of the "before-after" differences. Does hypnotism appear to be effective in reducing pain? Before 5.5 6.1 5.9 11.0 9.1 7.5 8.1 4.2 After 6.9 2.6 74 8.5 8.7 6.4 3.8 2.7 Construct a 95% confidence interval for the mean of the "before- ater differences. DWaO (Round to two decimal places as needed.)
A study was conducted to measure the effectiveness of hypnotism in reducing pain. The measurements are centimeters on a pain scale before and after hypnosis. Assume that the paired sample data are simple random samples and that the differences have a distribution that is approximately nomal. Construct a 95% confidence interval for the mean of the "before-after" differences. Does hypnotism appear to be effective in reducing pain? Before 5.5 6.1 5.9 11.0 9.1 7.5 8.1 4.2 After 6.9 2.6 74 8.5 8.7 6.4 3.8 2.7 Construct a 95% confidence interval for the mean of the "before- ater differences. DWaO (Round to two decimal places as needed.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Problem 1P
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Transcribed Image Text:A study was conducted to measure the effectiveness of hypnotism in reducing pain. The measurements are centimeters on a pain scale before
and after hypnosis. Assume that the paired sample data are simple random samples and that the differences have a distribution that is
approximately nomal. Construct a 95% confidence interval for the mean of the "before - after" differences. Does hypnotism appear to be
effective in reducing pain?
Before
5.5
6.1
5.9
11.0
9.1
7.5
8.1
After
6.9
2.6
74
8.5
8.7
6.4
3.8
Construct a 95% confidence interval for the mean of the "before-after differences.
O<H (Round to two decimal places as needed.)
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