Question: Hi, I need help solving this problem. I do not understand the confidence level. In a large clinical trial, 398,301 children were randomly assigned to

Hi, I need help solving this problem. I do not understand the confidence level.

In a large clinical trial, 398,301 children were randomly assigned to two groups. The treatment group consisted of 200,698 children given a vaccine for a certain disease, and 26 of those children developed the disease. The other 197,603 children were given a placebo, and 93 of those children developed the disease. Consider the vaccine treatment group to be the first sample. Complete parts (a) through (d) below. a. Assume that a 0.01 significance level will be used to test the claim that p,

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