d. (10pes) Suppose the study investigator is also interested in estimating the relapse rate for cocaine iners taking the antidepressant drag Desipramine. L (5 points) Conures a 90%% confidence interval for the relapse rate (Le, the proportion of individuals receiving Desipramine that have a relapse) X = 10 1 = 24 2 0.4166 2*- 2.576 P + 2 . P ( I - PY 0.4164+ 2.576 D . HICe ( ON5 734) 0: 41864 8. 259 1289 (0.676 1 8,15 741 (5 pointa) What sample size would be necessary to obtain a margin of enor of $9% (or 0.05) for the 99%% confidence interval? Use the sample proportion from the previous part as your educated guess to satyr into the equation ( 2 5 ) ( P ) ( F- P ) = (2. 576) ( 2 41 66 ) (0.5 834) ( 0 . 05 )2 = 645. 1 = 646