Researchers conducted a study to determine whether magnets are effective in e that the population standard deviations are equal. Complete parts (a) to (c) below. Reduction in Pain Level After Magnet Treatment (,) n= 20. x= 0.55, s= 0.91 Reduction in Pain Level After Sham Treatment (u) n= 20, x= 0.46, s = 1.31 a. 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 (similar to a placebo). What are the null and alternative hypotheses? VA Ha: P2 H 2 OC. Hg: H

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