Q9. (10 points) In a study of 800 randomly selected medical malpractice lawsuits, it was found that 480 of them was dropped or dismissed. Construct a 95% confidence interval for the proportion of medical malpractice lawsuits that are dropped or dismissed. a ) Find the best point estimate of the population proportion P. b) Find the critical value for 95% CL. c) Find the margin of error E. d) Construct the confidence interval for P. e) Interpretation of CI