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In 1965, about 44% of the U.S. adult population had never smoked cigarettes. A national health survey of 1472 U.S. adults (presumably selected randomly) during
In 1965, about 44% of the U.S. adult population had never smoked cigarettes. A national health survey of 1472 U.S. adults (presumably selected randomly) during 2010 revealed that 677 had never smoked cigarettes. Suppose you wished to test whether there has been a change since 1965 in the proportion of U.S. adults who have never smoked cigarettes. You test the hypothesesH0: p = 0.44,Ha: p > 0.44.
TheP-value of the test is:
A.between 0.05 and 0.10.
B.below 0.01.
C.greater than 0.10.
D.between 0.01 and 0.05.
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