he table shows the pain levels of patients before and after hypnotism. Pain level is measured on a cm scale. Assume that the two samples are randomly selected. At the 0.05 significance level, test the claim that the mean difference has increased after hypnotism. (Be sure to subtract in the same direction)
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Does Hypnotism Relieve Pain?
The table shows the pain levels of patients before and after hypnotism. Pain level is measured on a cm scale. Assume that the two samples are randomly selected. At the 0.05 significance level, test the claim that the mean difference has increased after hypnotism.
(Be sure to subtract in the same direction).
Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts. In case you require the unanswered parts also, kindly re-post that parts separately.
Before | After | Difference |
9 | 9 | 0 |
10.7 | 6.7 | 4 |
10.9 | 9.9 | 1 |
9.9 | 5.9 | 4 |
6.6 | 3.6 | 3 |
7.5 | 4.5 | 3 |
6.8 | 3.8 | 3 |
10.2 | 8.2 | 2 |
Hypotheses:
Null Hypothesis:
Alternative Hypothesis:
Original claim: H1
Degrees of freedom,
n-1=8-1=7
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Solved in 2 steps
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