TreatmentShamH2Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table for the treatment (with magnets) group and the sham (or placebo) group. Theresults are a measure of reduction in back pain. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standarddeviations are equal. Complete parts (a) and (b) below.22220.530.440.531.27a. 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.What are the null and alternative hypotheses?O A. Ho: H1< H2H1: H1 2 H2O B. Ho: H1 = H2H1: 41> H2C. Ho: H1 = H2H1: Hy # H2D. Ho: H1 + H2H1: H1 b. Construct a confidence interval suitable for testing the claim that those treated with magnets have a greater mean reduction in pain than those given a sham treatment.

n1 = n2 = 22 x1 =0.53x2 = 0.44 s1 = 0.53s2= 1.27a) Option b) is correct. The null and alternative hypotheses are H0: u1 = u2H1: u1 > u2 b) The test statistic is given by p-value= 0.3803 Fail to reject the null hypothesis. There is not sufficient evidence the support the claim.The 95% CI is given by

Math

Statistics

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. What are the null and alternative hypotheses? O A. Ho: H1 H2 H: H1 2 H2 OC. Ho: H1 =H2 OD. Ho: H1 P2 H1: H1

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. What are the null and alternative hypotheses? O A. Ho: H1 H2 H: H1 2 H2 OC. Ho: H1 =H2 OD. Ho: H1 P2 H1: H1

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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