Captopril is a drug designed to lower systolic blood, Ask an Expert

Statistics

Captopril is a drug designed to lower systolic blood pressure. When subjects were tested with this drug, their systolic blood pressure readings (in mm of mercury) were measured before and after the drug were taken, with the results given in the table:

a. Construct a 99% confidence interval for the mean difference between the before and after readings.

b. Is there sufficient evidence to support the claim that captopril is effective in lowering systolic blood pressure?

Subject A B C D E F G H I J K L

Before 200 174 198 170 179 182 193 209 185 155 169 210

After 191 170 177 167 159 151 176 183 159 145 146 177

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9393411

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