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 4954 patients treated with the drug, 191 developed the adverse reaction of nausea Construct a 90% confidence interval for the proportion of adverse reactions. b) Identify the value of the margin of error E. E = (Round to three decimal places as needed ) More