You test a new drug to reduce blood pressure. A group of 15patients with high blood pressure report the following systolicpressures (measured in mm Hg): before medication: after medication:change: ?y s 187 120 151 143 160 168 181 197 133 128 130 195 130147 193 187 118 147 145 158 166 177 196 134 124 133 196 130 146 189156.40 0 2 4 -2 2 2 4 1 -1 4 -3 -1 0 1 4 1.133 27.409 27.060 2.295a) Calculate a 90% CI for the change in blood pressure. b)Calculate a 99% CI for the change in blood pressure. c) Does eitherinterval (the one you calculated in (a) or (b)) include 0? Why isthis important? d) Now conduct a one sample t-test using ? = 0, and? = .10. Are the results consistent with (a)? e) Finally, conduct aone sample t-test using ? = 0, and ? = .01. Are the resultsconsistent with (b)?
