Question

訪客

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6@ The Agency for Healthcare Research and Quality reports that medical errors ae
ITesponsible for injury to 1 out of every 25 hospital patients in the United States. (Data
extracted from M. Ozan-Rafferty, “Hospitals: Never Havea Never Event,”The Gallup
Management Journal。gmj. gallup.com, May 7, 2009.) These errors are tragic and
&gxpensive.。Preventable health care-related errors cost an estimated $29 billion each
year im the United States、Suppose that you Select a sample of 100 U.S- hospital
patients-

結 What is the probability that the sample percentage reporting injury due to medieal
grrors Will be between 5% and 10%?

也生he probability is 909% that the sample percentage will be within what symmetrieal
Jimits ofthe population percentage?

c he probability is 95% that the sample percentage will be within what symmetrical

limits ofthe population percentage?