Researchers conducted a study to determine whether magnets are effective in treating back pain. Pain was measured using the visual analog scale, and the results shown below are among the results...

I need help with question b. I submitted this question before two times and I was given answer -0.59 and 0.69 but is incorrect, was also given -0.60 and 0.71 but was also incorrect. if you could please help me I put a picture of the actual quesion and one of an example that I was provided on how to do it.

Extracted text: Researchers conducted a study to determine whether magnets are effective in treating back pain. Pain was measured using the visual analog scale, and the results shown below are among the results obtained in the study. Higher scores correspond to greater pain levels. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) to (c) below. Reduction in Pain Level After Magnet Treatment (u,):n= 29, x= 0.59, s = 0.99 Reduction in Pain Level After Sham Treatment (u2): n= 29, x= 0.54, s = 1.46 ..... 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 (similar to a placebo). What are the null and alternative hypotheses? O A. Ho: H1 = H2 O B. Ho: H1 2 H1: H1

H2 O D. Ho: H1

Extracted text: Researchers conducted a study to determine whether magnets are effective in treating back pain. Pain was measured using the visual analog scale, and the results shown below are among the results obtained in the study. Higher scores correspond to greater pain levels. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) to (c) below. Reduction in Pain Level After Magnet Treatment (H1): n= 35, x= 0.49, s = 0.96 Reduction in Pain Level After Sham Treatment (H2): n= 35, x= 0.44, s = 1.66 ..... b. Construct a confidence interval appropriate for the hypothesis test in part (a). The confidence interval can be found using either technology or the inequality, (X1 -x2) -E