According to a Harris Interactive (July 2013) poll of U.S. adults, about 60% work during their summer
Question:
According to a Harris Interactive (July 2013) poll of U.S. adults, about 60% work during their summer vacation. Assume that the true proportion of all U.S. adults who work during summer vacation is p = .6. Now consider a random sample of 500 U.S. adults.
a. What is the probability that between 55% and 65% of the sampled adults work during summer vacation?
b. What is the probability that over 75% of the sampled adults work during summer vacation?
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Step by Step Answer:
By the Central Limit theorem the sampling distr...View the full answer
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Related Book For 
Statistics For Business And Economics
ISBN: 9780134506593
13th Edition
Authors: James T. McClave, P. George Benson, Terry Sincich
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