In a recent survey of drinking laws, a random sample of 1000 women showed that 65 were in favor of increasing the legal drinking age. In a random sample of 1000 men, 60 favored increasing the legal drinking age.
Construct a 95 confidence interval for p1 - p2. A) (0.008, 0.092 ) B) (0.587, 0.912 ) C) (-1.423, 1.432 ) D) (-2.153, 1.679 )
Question 2
Suppose the number of babies born during an 8-hour shift at a hospitals maternity wing follows a Poisson distribution with a mean of 2 an hour. Some people believe that the presence of a full moon increases the number of births that take place.
Suppose during the presence of a full moon, County Hospital experienced eight consecutive hours with more than three births. Based on this fact, comment on the belief that the full moon increases the number of births. A) The belief is supported as the probability of observing this many births would be 0.000000175.
B) The belief is not supported as the probability of observing this many births is 0.143.
C) The belief is supported as the probability of observing this many births would be 0.143.
D) The belief is not supported as the probability of observing this many births is 0.000000175.
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Elephant (Loxodonta africana) herd drinking at water hole. Etosha National Park, Namibia.
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