In a large clinical trial, 393 comma 153 children were randomly assigned to two groups. The treatment group consisted of 196 comma 369 children given a vaccine for a certain disease, and 31 of those children developed the disease. The other 196 comma 784 children were given a placebo, and 118 of those children developed the disease. Consider the vaccine treatment group to be the first sample.
If a 0.01 significance level is to be used to test the claim that p 1less thanp 2, what confidence level should be used?
(Can you walk me through the steps on how to solve this part?) Thanks!
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