a.) us a 0.05 signfigance level to test the claim that those treated with magnets have a greater mean reduction in pain than those given a sham treatment 1. Write a null hypothesis and alternative hypothesis 2. What is the test statistic? 3. What is the P-Value? 4. State the conclusion to the test.
Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table for the treatment (with magnets) group and the sham or (placebo) group. The results are a measurement of the reduction in back pain. Assume that the two samples are independent simple random samples selected from
M1 (treatment ) M2( sham)
n=29 n=20
x bar=0.55 x bar=0.39
s= 0.84 s=1.31
a.) us a 0.05 signfigance level to test the claim that those treated with magnets have a greater mean reduction in pain than those given a sham treatment
1. Write a null hypothesis and alternative hypothesis
2. What is the test statistic?
3. What is the P-Value?
4. State the conclusion to the test.
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