[CU'2006] A7 The following table contains observations on the supline systolic and blood pressures (in mm of Hg) for 15 patients with moderate hypertension, immediately before and two hours after taking a dring, diastolic (1) Perform an appropriate test for the hypothests that the drug is successful in reducing the dia stolic blood pressure. (ii) obtain 95% confidence interval for the mean difference in the systolic blood pressure before and after treatment. : Systolic BP before After Patient No. 2 S 6 10 11 12 13 14 15 ... 210 : 169 187 160 167 176 185 206 173 146 174 201 198 .148 154 201 165 IGC 157 147 145 168 180 147 136 151: 168 179 129 191 Diastolic BP Before After 130 122 124 104 112 101' 121 124 115 102 98: 119. 106 107 100 A 125 121 121 106 101 85 98 105 103 98 90 98 110 103 82