Question
In: Statistics and Probability
A study was conducted to investigate the effectiveness of acupuncture in reducing pain. Results for 6...
A study was conducted to investigate the effectiveness of acupuncture in reducing pain. Results for 6 randomly selected subjects are given in the accompanying table (the values are before and after acupuncture)
| subjects | A | B | C | D | E | F |
| before | 6.7 | 6.6 | 8.9 | 10.4 | 8.2 | 6.5 |
| after | 6.9 | 3.8 | 7.2 | 8.3 | 8.1 | 6.2 |
A) Is there sufficient evidence to conclude that acupuncture has no effect in reducing pain? Use cl: 0.05
b) construct a 95% confidence interval for the mean of the "before-after" differences.
Solutions
orchestra answered 2 years agoRelated Solutions
a study was conducted to investigate the effectiveness of acupuncture in reducing pain.
a
study was conducted to investigate the effectiveness of acupuncture
in reducing pain.
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from normally distributed populations, and do not assume that the
population standard deviations are equal. Complete parts (a) and
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effective in treating back pain. The results are shown in the table
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group. The results are a measure of reduction in back pain. Assume
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