6 A lab wants to compare two different drugs and whether patients felt side effects For Drug A out of a sample of 90 patients 18 felt some side effects For Drug B out of a sample of 100 patients 22 felt side effects At a 95 confidence level a 0 05 determine if there is a difference between the two drugs as far the proportion of patients who felt side effects Ho P P2 HA P1 P2 The null and alternative hypotheses a Compute the test statistic z score b What is the p value for the test statistic