Please help..!!

1) You test a new drug to reduce blood pressure. A group of 15 patients with high blood pressure report the following systolic pressures (measured in mm Hg): y S before medication: 187 120 151 143 160 168 181 197 133 128 130 195 130 147 193 157.53 27.409 after medication: 187 118 147 145 158 166 177 196 134 124 133 196 130 146 189 156.40 27.060 change: 0 2 4 -2 2 2 4 1 -1 4 -3 -1 0 1 4 1.133 2.295 a) Calculate a 95% CI for the change in blood pressure. b) Calculate a 99% CI for the change in blood pressure. 0) Does either interval (the one you calculated in (a) or (b)) include 0? Why is this important? (1) Now conduct a one sample t-test using Ju = 0, and a = .05. Are the results consistent with (a)? Why or why not? e) Finally, conduct a one sample ttest using ,u = 0, and a = .01. Are the results consistent with (b)? Why or why not