18 The table below shows the number of hours per day 11 patients suffered from headaches before and after 7 weeks of soft tissue therapy. At a = 0.01, is there enough evidence to conclude that soft tissue therapy helps to reduce the length of time patients suffer from headaches? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (f).345678 9 10 11aDaily headache hours (before) 2.2 3.3 3.9 3.7 4.2 2.5 4.4 3.3 2.2 4.1 4.11.3 2.7 1.5 3.3 1.6 1.6 3.9 1.4 1.4 2.8 3.6Patient1 2Daily headache hours (after)(a) Identify the claim and state H, and HThe claim is "The therapyV the length of time patients suffer from headaches."Let g be the hypothesized mean of the patients' daily headache hours before therapy minus their daily headache hours after it. State Hg and Hg. Choose the correct answer below.OA H P aOB. Ho: Ha 20OC. H, Ha saO D. Ho Ha s0H H >0E. He: k zaOF. Ho: aOE.Ha: Ha d(b) Find the critical value(s) and identify the rejection region(s).6-0(Use a comma to separate answers as needed. Type an integer or a decimal. Round to three decimal places as needed.)Identify the rejection region(s). Choose the correct answer below.O A. t< -3.169 or t> 3.169B. t< -2.764 or t> 2.764O c. t< -3.169O D. t>2.764(c) Calculate d.(Type an integer or a decimal. Round to three decimal places as needed.)Calculate sg.(Type an integer or a decimal. Round to three decimal places as needed.)(d) Use the t-test to find the standardized test statistic t.t=(Type an integer or a decimal. Round to three decimal places as needed.)(e) Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below.O Fail to reject the null hypothesis.O Reject the null hypothesis.(1) Interpret the decision in the context of the original claim. Choose the correct answer below.O A. At the 1% sianificance level. there is not enouah evidence that soft tissue therapv helos to reduce the lenath of time patients suffer from headaches.O B. Soft tissue therapy increases the length of time patients suffer from headaches.Oc. The sample was not large enough to make a conclusion.O D. At the 1% sianificance level. there is enouah evidence that soft tissue therapv helos to reduce the lenath of time patients suffer from headaches.

Name: 18 The table below shows the number of hours per day 11 patients suffe
Uploaded: 2024-03-20T07:06:41.000Z
Channel: Bartleby
Description: 18 The table below shows the number of hours per day 11 patients suffered from headaches before and after 7 weeks of soft tissue therapy. At a = 0.01, is there enough evidence to conclude that soft tissue therapy helps to reduce the length of time pa