Critical Thinking. In Exercises 17–28, use the data and confidence level to construct a confidence interval estimate of p, then address the given question. Lipitor In clinical trials of the drug Lipitor (atorvastatin), 270 subjects were given a placebo and 7 of them had allergic reactions. Among 863 subjects treated with 10 mg of the drug, 8 experienced allergic reactions. Construct the two 95% confidence interval estimates of the percentages of allergic reactions. Compare the results. What do you conclude?

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A: Confidence level -95%   Higher the confidence level, higher the width of the confidence interval.

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A: n1=560, x1=171n2=720, x2=263α=0.05 Claim: p1<p2

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A: The following information has been given: n=60                s=1.052x¯=7.25

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A: Formula : CI=p̂ ± ME

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A: Please find the explanation below. Thank you.