QUESTION 13 17 points 13) A group of medical researchers are developing a treatment program that is intended to reduce b

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Question 13 17 Points 13 A Group Of Medical Researchers Are Developing A Treatment Program That Is Intended To Reduce B 1 (165.51 KiB) Viewed 12 times

QUESTION 13 17 points 13) A group of medical researchers are developing a treatment program that is intended to reduce blood pressure levels of patients who are at risk of heart diseases. They have selected a random sample of 12 patients and measured their systolic blood pressure levels. Then they were given the treatment for 4 weeks and remeasured the systolic blood pressure levels. The observations before and after the treatment program are shown below: 3 4 140 143 Patient Before After 1 145 134 2 134 132 155 145 5 138 134 For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). 6 150 146 7 148 134 8 152 150 9 129 125 Use 5% significance level to test the claim that the treatment program lowers the systolic blood pressure level on average. a) What are the null and alternative hypotheses for this test? b) What are the mean differences (before - after) and the standard deviation of differences for this sample of 12 patients? Give two decimal places. c) What is value of the test statistic? Give four decimal places d) What is the p-value? Give four decimal places e) What is your conclusion? Explain in terms of the claim that the treatment lowers the blood pressure level. 10 142 138 11 149 140 Save Answer 12 137 132