(Solved):
In randomized, double-blind clinical trials of a new vaccine, rats were randomly divided into t ...
In randomized, double-blind clinical trials of a new vaccine, rats were randomly divided into two groups. Subjects in group 1 received the new vaccine while subjects in group 2 received a control vaccine. After the second dose, 100 of 742 subjects in the experimental group (group 1) experienced drowsiness as a side effect. After the second dose, 57 of 623 of the subjects in the control group (group 2) experienced drowsiness as a side effect. Does the evidence suggest that a higher proportion of subjects in group 1 experienced drowsiness as a side effect than subjects in group 2 at the ?=0.05 level of significance? 3. The sample size is less than 5% of the population size for each sample. The sample size is more than 5% of the population size for each sample. 1. n1?p^?1?(1?p^?1?)?10 and n2?p^?2?(1?p^?2?)?10 E. The data come from a population that is normally distributed. F. The samples are dependent. Determine the null and alternative hypotheses H0?:p1?=7p2?H1?:p1?=p2?? Find the test statistic for this hypothesis test. (Round to two decimal places as needed.)