Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table below. The results are a measure of reduction in back pain. Assume that the two samples are independent random samples. Treatment Sham μ μ₁ μ₂ n 18 18 x̄ 0.57 0.42 s 0.54 1.46 Use a 0.05 significance level to test the claim that those treated with magnets have a greater mean reduction in pain than those given a sham treatment. State the claim, null, and alternative hypothesis. Claim: μ1 μ2 HO: μ1 μ2 H1: μ1 μ2
Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table below. The results are a measure of reduction in back pain. Assume that the two samples are independent random samples. Treatment Sham μ μ₁ μ₂ n 18 18 x̄ 0.57 0.42 s 0.54 1.46 Use a 0.05 significance level to test the claim that those treated with magnets have a greater mean reduction in pain than those given a sham treatment. State the claim, null, and alternative hypothesis. Claim: μ1 μ2 HO: μ1 μ2 H1: μ1 μ2
MATLAB: An Introduction with Applications
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Magnet Problem
Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table below. The results are a measure of reduction in back pain. Assume that the two samples are independent random samples.
Treatment | Sham | |
μ | μ₁ | μ₂ |
n | 18 | 18 |
x̄ | 0.57 | 0.42 |
s | 0.54 | 1.46 |
Use a 0.05 significance level to test the claim that those treated with magnets have a greater
State the claim, null, and alternative hypothesis.
Claim: | μ1 | μ2 | |
HO: | μ1 | μ2 | |
H1: | μ1 | μ2 |
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