Question

5. (17 pt) In a study of 808 randomly selected medical malpractice lawsuits, it was found that 455 of them were dropped or dismissed. Use a 0.05 significance level to test the claim that most medical malpractice lawsuits (which means more than 50%) are dropped or dismissed.

a). Express the original claim in symbolic form and state the null and alternative hy- potheses.

(b). Use the critical value approach or P− value approach to test the hypothesis.

(c). State the final conclusion that addresses the original claim.

Answer 1