1. Captopril is a drug designed to lower systolic blood pressure. When subjects were treated with this drug, their systolic blood pressure readings (in mm Hg) were measured before and after the drug was taken. Results are given in the accompanying tables (based on data from "Essential Hypertension: Effect of an Oral Inhibitor of Angiotensin-Converting Enzyme," by MacGregor et al., British Medical Journal, Vol. 2). Using a 0.01 significance level, is there sufficient evidence to support the claim that captopril is effective in lowering systolic blood pressure? Subject Before (x) | 200 After (y) A В C D E F G H I K 174 198 170 179 182 193 209 185 155 169 210 191 170 177 167 159 151 176 183 159 145 146 177 2. A study was conducted to investigate the effectiveness of hypnotism in reducing pain. Results for randomly selected subjects are given in the accompanying table (based on “An Analysis of Factors That Contribute to the Efficacy of Hypnotic Analgesia," by Price and Barber, Journal of Abnormal Psychology, Vol. 96, No. 1). The values are before and after hypnosis; the measurements are in centimeters on a pain scale, with higher values representing greater pain. Use 0.05 significance level. Does hypnotism appear to be effective in reducing pain? Subject Before (x) After (y) А В C D E F G H 6.6 6.5 9.0 10.3 11.3 8.1 6.3 11.6 6.8 2.4 7.4 8.5 8.1 6.1 3.4 2.0
1. Captopril is a drug designed to lower systolic blood pressure. When subjects were treated with this drug, their systolic blood pressure readings (in mm Hg) were measured before and after the drug was taken. Results are given in the accompanying tables (based on data from "Essential Hypertension: Effect of an Oral Inhibitor of Angiotensin-Converting Enzyme," by MacGregor et al., British Medical Journal, Vol. 2). Using a 0.01 significance level, is there sufficient evidence to support the claim that captopril is effective in lowering systolic blood pressure? Subject Before (x) | 200 After (y) A В C D E F G H I K 174 198 170 179 182 193 209 185 155 169 210 191 170 177 167 159 151 176 183 159 145 146 177 2. A study was conducted to investigate the effectiveness of hypnotism in reducing pain. Results for randomly selected subjects are given in the accompanying table (based on “An Analysis of Factors That Contribute to the Efficacy of Hypnotic Analgesia," by Price and Barber, Journal of Abnormal Psychology, Vol. 96, No. 1). The values are before and after hypnosis; the measurements are in centimeters on a pain scale, with higher values representing greater pain. Use 0.05 significance level. Does hypnotism appear to be effective in reducing pain? Subject Before (x) After (y) А В C D E F G H 6.6 6.5 9.0 10.3 11.3 8.1 6.3 11.6 6.8 2.4 7.4 8.5 8.1 6.1 3.4 2.0
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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Transcribed Image Text:1. Captopril is a drug designed to lower systolic blood pressure. When subjects were treated with
this drug, their systolic blood pressure readings (in mm Hg) were measured before and after the
drug was taken. Results are given in the accompanying tables (based on data from "Essential
Hypertension: Effect of an Oral Inhibitor of Angiotensin-Converting Enzyme," by MacGregor et
al., British Medical Journal, Vol. 2). Using a 0.01 significance level, is there sufficient evidence to
support the claim that captopril is effective in lowering systolic blood pressure?
Subject
Before (x) 200
After (y)
А
В
C
D
E
F
G
H
I
K
174
198
170
179
182
193
209
185
155
169
210
191
170
177
167
159
151
176
183
159
145
146
177
2. A study was conducted to investigate the effectiveness
for randomly selected subjects are given in the accompanying table (based on "An Analysis of
hypnotism in reducing pain. Results
Factors That Contribute to the Efficacy of Hypnotic Analgesia," by Price and Barber, Journal of
Abnormal Psychology, Vol. 96, No. 1). The values are before and after hypnosis; the
measurements are in centimeters on a pain scale, with higher values representing greater pain.
Use 0.05 significance level. Does hypnotism appear to be effective in reducing pain?
Subject
Before (x)
After (y)
А
В
C
D
E
F
G
H
6.6
6.5
9.0
10.3
11.3
8.1
6.3
11.6
6.8
2.4
7.4
8.5
8.1
6.1
3.4
2.0
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