In a 4-week study about the effectiveness of using magnetic insoles to treat plantar heel pain, magnetic insoles and 47 subjects wore nonmagnetic insoles. The results are shown at the right. At a = 0.06, can you support 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) through (e). Do you Feel Better? Magnetic Insoles subjects wore Yes 15 I No 36 Nonmagnetic Insoles Yes 20 I No 27 (a) Identify the claim and state Ho and Ha. The claim is "the proportion of subjects who feel better with magnetic insoles is 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> P2 Ha: P1 SP2 O B. Ho: P1 =P2 Ha: P, #P2 OC. Ho: P1 *P2 Ha:P1 =P2 O D. Ho: P1 P2 (b) Find the critical value(s) and identify the rejection region(s). The critical value(s) is(are). (Use a comma to separate answers as needed. Type an integer or a decimal. Round to two decimal places as needed.) Identify the rejection region(s). Select the correct choice below and fill in the answer box(es) within your choice. (Round to two decimal places as needed.) O A. O B. z> OD. z< (c) Find the standardized test statistic. z= (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below. O Reject Ho because the test statistic is not in the rejection region. O Fail to reject Ho because the test statistic is in the rejection region. O Fail to reject Ho because the test statistic is not in the rejection region. O Reject Ho because the test statistic is in the rejection region.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In a 4-week study about the effectiveness of using magnetic insoles to treat plantar heel pain, 51 subjects wore magnetic insoles and

47 subjects wore nonmagnetic insoles. The results are shown at the right. At α=0.06, can you support the claim that there is a difference in the proportion of subjects who feel better between the twogroups? Assume the random samples are independent. Complete parts (a) through (e).

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