Use the sample data and confidence level given below to complete parts (a) through (d) A drug is used to help prevent blood clots in certain patients. In clinical trials, among 4423 patients treated with the drug. 197 developed the adverse reaction of nausea Construct a 95% confidence interval for the proportion of adversion a) Find the best point estimate of the population proportion p 0.045 (Round to three decimal places as needed.) b) identify the value of the margin of error E E = 0.000 (Round to three decimal places as needed.) c) Construct the confidence interval 0