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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.
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? talGey Before 6.6 0.7 9.1 12.9 9.7 10.1 3.4 0.9 GEYSER After 6.8 2.5 7.3 8.4 8.5 6.4 3.6 2.7 i WATER led at urce. nformation Why contact mail at Construct a 95% confidence interval for the mean of the "before - after" differences. Sure
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