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A study was conducted to determine whether magnets were effective in treating pain The values...

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A study was conducted to determine whether magnets were effective in treating pain The values represent measurements of pain using the visual analog scale Assume that both samples are independent simple random samples from populations having normal distributions Use a 0 05 significance level to test the claim that those given a sham treatment have pain reductions that vary more than the pain reductions for those treated with magnets What are the null and alternative hypotheses OA Ho 002 H 0 0 2 OC H 0 0 H 0 0 2 Identify the test statistic F Round to two decimal places as needed B H 0 0 2 H 0 0 2 D H 0 0 H 0 0 n Sham 20 Magnet 20 X S 0 44 1 3 0 49 0 91

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