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A certain stimulus was to be tested for its effects on blood pressure. Twelve men among the willing participants were chosen randomly for this purpose. The blood pressure of each person was measured before and after the administration of the stimulus. The results are as follow: Subject No. 1 3 4 5 6 7 8 9 10 11 12 Before 121 123 119 129 128 139 137 140 127 125 131 126 After 129 132 128 130 127 140 137 141 134 130 133 125 Is there enough evidence to suggest that the stimulus, on the average, would raise the blood pressure by at least 3 points? (Hint: in this case Ho : HA < HB + 3 versus H1 : HA > HB + 3, where µA, HB are the respective mean blood pressure levels after and before the stimulus is administered.) The following "answers" have been proposed. (a) We reject the null hypothesis at the significance level a = 0.05. We could have made a type II error. (b) We reject the null hypothesis at the significance level a = 0.05. We could have made a type I error. (c) We do not reject the null hypothesis at the significance level a = 0.05. We could have made a type I error. (d) We do not reject the null hypothesis at the significance level a = 0.05. We could have made a type II error. (e) None of the above. The correct answer is (a) (b) (c) (d) (e) N/A (Select One)

A certain stimulus was to be tested for its effects on blood pressure. Twelve men among the willing participants were chosen randomly for this purpose. The blood pressure of each person was measured before and after the administration of the stimulus. The results are as follow: Subject No. 1 3 4 5 6 7 8 9 10 11 12 Before 121 123 119 129 128 139 137 140 127 125 131 126 After 129 132 128 130 127 140 137 141 134 130 133 125 Is there enough evidence to suggest that the stimulus, on the average, would raise the blood pressure by at least 3 points? (Hint: in this case Ho : HA < HB + 3 versus H1 : HA > HB + 3, where µA, HB are the respective mean blood pressure levels after and before the stimulus is administered.) The following "answers" have been proposed. (a) We reject the null hypothesis at the significance level a = 0.05. We could have made a type II error. (b) We reject the null hypothesis at the significance level a = 0.05. We could have made a type I error. (c) We do not reject the null hypothesis at the significance level a = 0.05. We could have made a type I error. (d) We do not reject the null hypothesis at the significance level a = 0.05. We could have made a type II error. (e) None of the above. The correct answer is (a) (b) (c) (d) (e) N/A (Select One)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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A certain stimulus was to be tested for its effects on blood pressure. Twelve men among the willing participants were chosen randomly for this purpose. The blood pressure of each person was measured before and after the administration of the stimulus. The results are as follow: Subject No. 1 2 3 4 5 7 8 9. 10 11 12 Before 121 123 119 129 128 139 137 140 127 125 131 126 After 129 132 128 130 127 140 137 141 134 130 133 125 Is there enough evidence to suggest that the stimulus, on the average, would raise the blood pressure by at least 3 points? (Hint: in this case Ho : HA <HB + 3 versus H1 : µA > µB + 3, where HA, HB are the respective mean blood pressure levels after and before the stimulus is administered.) The following `answers" have been proposed. (a) We reject the null hypothesis at the significance level a = 0.05. We could have made a type II error. (b) We reject the null hypothesis at the significance level a = (c) We do not reject the null hypothesis at the significance level a = 0.05. We could have made a type I error. (d) We do not reject the null hypothesis at the significance level a = (e) None of the above. 0.05. We could have made a type I error. 0.05. We could have made a type II error. The correct answer is (a) (b) (c) (d) (e) N/A (Select One)
Transcribed Image Text:A certain stimulus was to be tested for its effects on blood pressure. Twelve men among the willing participants were chosen randomly for this purpose. The blood pressure of each person was measured before and after the administration of the stimulus. The results are as follow: Subject No. 1 2 3 4 5 7 8 9. 10 11 12 Before 121 123 119 129 128 139 137 140 127 125 131 126 After 129 132 128 130 127 140 137 141 134 130 133 125 Is there enough evidence to suggest that the stimulus, on the average, would raise the blood pressure by at least 3 points? (Hint: in this case Ho : HA <HB + 3 versus H1 : µA > µB + 3, where HA, HB are the respective mean blood pressure levels after and before the stimulus is administered.) The following `answers" have been proposed. (a) We reject the null hypothesis at the significance level a = 0.05. We could have made a type II error. (b) We reject the null hypothesis at the significance level a = (c) We do not reject the null hypothesis at the significance level a = 0.05. We could have made a type I error. (d) We do not reject the null hypothesis at the significance level a = (e) None of the above. 0.05. We could have made a type I error. 0.05. We could have made a type II error. The correct answer is (a) (b) (c) (d) (e) N/A (Select One)
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