Answered: Before 10.8 4.5 10.0 13.1 13.4 6.1 6.7…

Name: A study was conducted to measure the effectiveness of hypnotism in red
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Description: 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

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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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 normal. Construct a 95% confidence interval for the mean of the"before−after" differences. Does hypnotism appear to be effective in reducing pain?

Before
10.8
4.5
10.0
13.1
13.4
6.1
6.7
2.5
After
6.5
2.6
7.1
8.5
8.6
6.6
3.5
2.1
Construct a 95% confidence interval for the mean of the "before - after" differences.
(Round to two decimal places as needed.)
Does hypnotism appear to be effective in reducing pain?

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