Confidence interval for p1- p2

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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 first dose, 107 of 710 subjects in the experimental group (group 1) experienced vomiting as a side effect. After the first dose, 54 of 616 of the subjects in the control group (group 2) experienced vomiting as a side effect. Construct a 95% confidence interval for the difference between the two population proportions

p1 - p2. Use x1= 107, n1 =710, x2= 54, and n2= 616.

What is the 95% confidence interval for p1- p2?

Reference no: EM132202846

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