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20. In a 4-week study about the effectiveness of using magnetic Do you Feel Better? insoles to treat plantar heel pain, 56 subjects wore magnetic Magnetic Insoles insoles and 48 subjects wore nonmagnetic insoles. The Yes 21 results are shown at the right. Al a = 0.05, can you support No 35 the claim that there is a difference in the proportion of subjects who feel better between the two groups? Assume the random samples are independent. Complete parts (a) Nonmagnetic Insales through (e). Yes 16 No 32 (a) Identify the claim and state Ho and Ha- The claim is "the proportion of subjects who feel better with magnetic insoles is (1) those who feel better with nonmagnetic insoles." Let p, represent the population proportion for the magnetic insoles and p2 represent the population proportions for the nonmagnetic insoles. State Ho and Ha Choose the correct answer below. O A Ho: P1 SP2 O B. Ho: P1 2 Pz O C. Ho: P1 > P2 Ha: P1 > P2 Ha: P1 OD. Z (c) Find the standardized test statistic. (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below. Fail to reject Ho because the test statistic is in the rejection region. Reject Ho because the test statistic is in the rejection region. Fail to reject Ho because the test statistic is not in the rejection region, O Reject Ho because the test statistic is not in the rejection region. https/xitemprod pearsoncig.com/ap/v1/print/math