Matched Pairs 01a When subjects were treated with a drug, their systolic blood p

Question

Matched Pairs 01a When subjects were treated with a drug, their systolic blood pressure readings (in mm Hg) were measured before and after the drug was taken. Results are given in the table below. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Using a 0.05 significance level, is there sufficient evidence to support the claim that the drug is effective in lowering systolic blood pressure? 155 156 191 167 195 176 164 148 210 179 172 178 188 179 179 159 Before After 205 143 183 144 157 152 147 In this example, ?d is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the systolic blood pressure reading before the drug was taken minus the reading after the drug was taken. What are the null and alternative hypotheses for the hypothesis test? Answer 2 3. 4

Explanation / Answer

Solution:-

option 3. H0:?d <= 0
H1:?d > 0

d is the systolic preasure reading before the drug minus after the drug

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