In a study of 1228 randomly selected medical malpractice lawsuits, it was found that 856 of them were dropped or dismissed (based on data from the Physicians Insurers Association of America). Construct a 95% confidence interval for the proportion of medical malpractice lawsuits that are dropped or dismissed.

Use the given sample data and confidence level. In each case,

(a) find the best point estimate of the population proportion p;
(b) identify the value of the margin of error E;
(c) construct the confidence interval;
(d) write a statement that correctly interprets the confidence interval