1) You test a new drug to reduce blood pressure. A group of 15 patients with high blood pressure report the following systolic pressures (measured in mm Hg): ̄y s before medication: 187 120 151 143 160 168 181 197 133 128 130 195 130 147 193 157.53 27.409 after medication: 187 120 149 147 159 168 179 197 135 127 133 194 130 146 191 156.47 26.691 change: 1 1 3 -3 2 1 3 1 -1 2 -2 2 1 2 3 1.067 1.7915 a) Calculate a 90% CI for the change in blood pressure. b) Calculate a 99% CI for the change in blood pressure. c) Does either interval (the one you calculated in (a) or (b)) include 0? Why is this important?

1) You test a new drug to reduce blood pressure. A group of 15 patients with high blood pressure report the following systolic pressures (measured in mm Hg): ̄y s before medication: 187 120 151 143 160 168 181 197 133 128 130 195 130 147 193 157.53 27.409 after medication: 187 120 149 147 159 168 179 197 135 127 133 194 130 146 191 156.47 26.691 change: 1 1 3 -3 2 1 3 1 -1 2 -2 2 1 2 3 1.067 1.7915 a) Calculate a 90% CI for the change in blood pressure. b) Calculate a 99% CI for the change in blood pressure. c) Does either interval (the one you calculated in (a) or (b)) include 0? Why is this important?

Name: 1) You test a new drug to reduce blood pressure. A group of 15 patient
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Description: 1) You test a new drug to reduce blood pressure. A group of 15 patients with high blood pressure report the following systolic pressures (measured in mm Hg): ̄y sbefore medication: 187 120 151 143 160 168 181 197 133 128 130 195 130 147 193 157.53 27

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 9PPS

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1) You test a new drug to reduce blood pressure. A group of 15 patients with high blood pressure report the following systolic pressures (measured in mm Hg): ̄y s

before medication: 187 120 151 143 160 168 181 197 133 128 130 195 130 147 193 157.53 27.409

after medication: 187 120 149 147 159 168 179 197 135 127 133 194 130 146 191 156.47 26.691

change: 1 1 3 -3 2 1 3 1 -1 2 -2 2 1 2 3 1.067 1.7915

a) Calculate a 90% CI for the change in blood pressure.
b) Calculate a 99% CI for the change in blood pressure.
c) Does either interval (the one you calculated in (a) or (b)) include 0? Why is this important?

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