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Q9. (19 points) In a study of 899 randomly selected medical malpractice lawsuits, it was found that 439 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. {1) Construct the condence interval for P. e) Interpretation of CI