Use the sample data and confidence level given below to compte pets (3) through (4) A drug is used to help prevent blood dices in certain patents. In cinical trials, among 4423 patients treated with the drug, 197 developed the adverse action of nauses Con 30% contence the ton of 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 emor E 0-3 (Round to three decimal places as needed.))