Homework: Chapter 9 Homework Question 8, 9.3.12-T HW Score: 33.33%, 4.67 of 14 points Part 2 of 4 Points: 0.33 of 2 Save 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? Before 164 174 157 183 205 179 189 195 155 178 188 After 167 148 156 152 144 143 147 155 176 156 179 179 177 In this example, jig 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 wa taken. What are the null and alternative hypotheses for the hypothesis test? O A. Ho: Hd = 0 &B. Ho: Hd = 0 H1 : Hd O O C. Ho: Ha # 0 OD. Ho: Hd #0 Hy:Hid = 0 H 1: Hd > 0 Identify the test statistic. 1= (Round to two decimal places as needed.)