K Captopril is a drug designed to lower systolic blood pressure. The systolic blood pressure reading (mmHg) of subjects were measured before and after they took the drug. Results are given in the accompanying table (based on data from "Essential Hypertension: Effect of an Oral Inhibitor of Angiotensin-Converting Enzyme," by MacGregor et al., British Medical Journal, Vol. 2). Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Complete parts (a) and (b). Before After OA. Ho Hd #0 OC. Ho Hd 20 H₁ d=0 Identify the test statistic. 182 209 174 193 210 179 169 155 170 185 151 183 170 176 177 159 146 145 167 159 200 191 198 177 t= (Round to two decimal places as needed.) Identify the P-value. P-value= (Round to three decimal places as needed.) Since the P-value is than the significance level, B. Ho Hd=0 OD. Ho Hd=0 H₁:0 Ho. There is evidence to b. Construct a confidence interval that could be used to test the claim given in part (a). The confidence interval is mmHg

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
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Author:Carter
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Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
Question
Use a significance level of 0.01
K
Captopril is a drug designed to lower systolic blood pressure. The systolic blood pressure reading (mmHg) of subjects were measured before and after they took the drug. Results are given in the
accompanying table (based on data from "Essential Hypertension: Effect of an Oral Inhibitor of Angiotensin-Converting Enzyme," by MacGregor et al., British Medical Journal, Vol. 2). Assume that
the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Complete parts (a) and (b).
Before
After
OA. Ho Hd #0
OC. Ho Hd 20
H₁ d=0
Identify the test statistic.
182
209
174
193
210
179
169
155
170
185
151
183
170
176
177
159
146
145
167
159
200
191
198
177
t=
(Round to two decimal places as needed.)
Identify the P-value.
P-value=
(Round to three decimal places as needed.)
Since the P-value is
than the significance level,
B. Ho Hd=0
OD. Ho Hd=0
H₁:0
Ho. There is
evidence to
b. Construct a confidence interval that could be used to test the claim given in part (a).
The confidence interval is mmHg <Hd
(Round to one decimal place as needed.)
mmHg.
the claim that captopril is effective in lowering systolic blood pressure.
Transcribed Image Text:K Captopril is a drug designed to lower systolic blood pressure. The systolic blood pressure reading (mmHg) of subjects were measured before and after they took the drug. Results are given in the accompanying table (based on data from "Essential Hypertension: Effect of an Oral Inhibitor of Angiotensin-Converting Enzyme," by MacGregor et al., British Medical Journal, Vol. 2). Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Complete parts (a) and (b). Before After OA. Ho Hd #0 OC. Ho Hd 20 H₁ d=0 Identify the test statistic. 182 209 174 193 210 179 169 155 170 185 151 183 170 176 177 159 146 145 167 159 200 191 198 177 t= (Round to two decimal places as needed.) Identify the P-value. P-value= (Round to three decimal places as needed.) Since the P-value is than the significance level, B. Ho Hd=0 OD. Ho Hd=0 H₁:0 Ho. There is evidence to b. Construct a confidence interval that could be used to test the claim given in part (a). The confidence interval is mmHg <Hd (Round to one decimal place as needed.) mmHg. the claim that captopril is effective in lowering systolic blood pressure.
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