Patient 1 2 3 4 5 6 7 8 9 Blood pressure (before) 196196 162162 155155 155155 180180 193193 169169 205205 198198 Blood pressure (after) 187187 143143 142142 142142 158158 172172 158158 182182 172172
Patient 1 2 3 4 5 6 7 8 9 Blood pressure (before) 196196 162162 155155 155155 180180 193193 169169 205205 198198 Blood pressure (after) 187187 143143 142142 142142 158158 172172 158158 182182 172172
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure (in millimeters of mercury) for nine patients before taking the new drug and 22 hours after taking the drug are shown in the table below. Using this data, find the 99%99% confidence interval for the true difference in blood pressure for each patient after taking the new drug. Assume that the blood pressures are
Patient | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
---|---|---|---|---|---|---|---|---|---|
Blood pressure (before) | 196196 | 162162 | 155155 | 155155 | 180180 | 193193 | 169169 | 205205 | 198198 |
Blood pressure (after) | 187187 | 143143 | 142142 | 142142 | 158158 | 172172 | 158158 | 182182 | 172172 |
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Step 3 of 4 :
Calculate the margin of error to be used in constructing the confidence interval. Round your answer to six decimal places.
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