Question 242557
in a poll of women 18 and older, 70% of women polled felt their financial situation was better than their mothers.
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assume that this percentage is true for the current populatiom of all women 18 and older.
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find the probability that the proportion of women in a random sample of 400 who hold this view is less than .73
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z(0.73)=(0.73-0.70)/sqrt(0.7*0.3/400) = 1.30931
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P(p-hat < 1.30931) = P(z < 1.30931) = 0.9048
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Cheers,
Stan H.