MATLAB: An Introduction with Applications
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ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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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
a. Construct a 95% confidence interval for the mean of the "beforeminusafter" differences.
less than mu Subscript dless than
(Round to two decimal places as needed.)
b. Does hypnotism appear to be effective in reducing pain?
Transcribed Image Text:**Data Comparison: Before and After**
The table illustrates a comparison of numerical values before and after a specific event or intervention.
- **Before:**
- 10.4, 6.8, 6.3, 10.2, 11.3, 7.7, 2.0, 1.7
- **After:**
- 6.7, 2.6, 7.8, 8.9, 8.2, 6.9, 3.7, 2.2
These values may reflect measurements in a study, such as test scores, substance levels, or other quantifiable data, showing changes after applying certain conditions or treatments. By analyzing these values, one can draw conclusions on the effectiveness or impact of the intervention.
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