Independent memorial hospital administrators have recently received an internal audit report that indicates that 15% of all patient bills

PROBLEM: This is one of the 7 of which you need to complete 5. Independent Memorial Hospital administrators have recently received an internal audit report that indicates that 15% of all patient bills contain an error of one form or another After spending considerable effort to improve the hospital's billing process, the administrators are convinced that things have improved. They believe the new error rate is closer to 10%. Suppose that recently the hospital randomly sampled 10 patient bills and conducted a thorough study to determine whether an error exists. It found 4 bills with errors. Assuming that marragers are correct that they have improved the error rate to 10, what is the probability they would fine 4 or more errors in a sample of 10 bills? QUESTION 57 PROBLEM (this is one the 7 of which you need to answer 5) During the period of time that a local university takes phone-in registrations, calls come in at the rate of one every two minutes. a. What is the expected number of calls in one hour? 30 b. What is the probability of three calls in five minutes? |2138 c. What is the probability of no calls in a five minute period? |0821 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers e here to search O e PrtScr Delete PgUp F7 FB FO F10 W H A 4 A Backspace 6 8 O