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esearchers conducted a study to determine whether magnets are effective in treating back pain Pain...

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esearchers conducted a study to determine whether magnets are effective in treating back pain Pain was easured using the visual analog scale and the results shown below are among the results obtained in the study igher scores correspond to greater pain levels Assume that the two samples are independent simple random amples selected from normally distributed populations and do not assume that the population standard deviations re equal Complete parts a to c below Reduction in Pain Level After Magnet Treatment n 30 x 0 45 s 0 92 Reduction in Pain Level After Sham Treatment n 30 x 0 35 s 1 51 H H1 H OC Ho 2 H H H H1 H1 H2 D Ho P P2 H H P The test statistic t is 0 31 Round to two decimal places as needed The P value is 0 379 Round to three decimal places as needed State the conclusion for the test Fail to reject the null hypothesis There is not sufficient evidence to support the claim that those treated with magnets have a greater mean reduction in pain than those given a sham treatment b Construct a confidence interval appropriate for the hypothesis test in part a 04 2 0

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