A researcher gives a drug to eight patients to lower diastolic blood pressure; measures of diastolic...
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A researcher gives a drug to eight patients to lower diastolic blood pressure; measures of diastolic blood pressure are taken at the beginning and at the end of the study. (a) Suppose the researcher works for the drug company. They decide to do a hypothesis test at 90% confidence. Why does the researcher settle on the 90% confidence level? (b) At a 90% confidence level, can the researcher claim that the blood pressure decreases the diastolic blood pressure? Assume the differences between before and after follow a normal distribution. Patient Before After 2 100 110 95 3 112 106 114 4 119 5 99 107 96 6 7 120 105 108 101 8 117 116 A researcher gives a drug to eight patients to lower diastolic blood pressure; measures of diastolic blood pressure are taken at the beginning and at the end of the study. (a) Suppose the researcher works for the drug company. They decide to do a hypothesis test at 90% confidence. Why does the researcher settle on the 90% confidence level? (b) At a 90% confidence level, can the researcher claim that the blood pressure decreases the diastolic blood pressure? Assume the differences between before and after follow a normal distribution. Patient Before After 2 100 110 95 3 112 106 114 4 119 5 99 107 96 6 7 120 105 108 101 8 117 116
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In a the researcher chooses a 90 confidence level because it reflects the degree of uncertainty they are willing to accept in the hypothesis test The ... View the full answer
Related Book For
Business Statistics A Decision Making Approach
ISBN: 9780133021844
9th Edition
Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry
Posted Date:
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