4.67 The hoapital is planning a new emergency-room facility. It wants enough beds in the emergency ward so that for at least 95% of normal-pollution days it will not neeci to turn anyone away. What is the smallest number of beds it should have to satisfy this criterion?
4.67 The hoapital is planning a new emergency-room facility. It wants enough beds in the emergency ward so that for at least 95% of normal-pollution days it will not neeci to turn anyone away. What is the smallest number of beds it should have to satisfy this criterion?
Hepatic Disease Suppose we observe 84 alcoholics with cirrhosis of the liver, of whom 29 have hepatomas-that is, liver-cell carci- noma. Suppose we know, based on a large sample, that the risk of hepatoma among alcoholics without cirrhosis of the liver is 24%.
5.50 What is the
5.51 What is the probability of observing at least 29 hepa- tomas among the 84 alcoholics with cirhosis of the liver under the assumptions in Problem 5.50?
5.52 What is the smallest number of hepatomas that would have to be observed among the alcoholics with cirrhosis of the liver for the hepatoma experience in this group to differ from the hepatoma experience among alcoholics without cirhosis of the liver? (Hint: Use a 5% probability of getting a result at least as extreme to denote differences between the hepatoma experiences of the two groups.)
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