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You want to estimate the proportion of college students who belong to a fraternity or sorority. You survey a random sample of 500 college students and find that 60 belong to a fraternity or sorority. If you want to construct a 99% confidence interval, what will the margin of error be? Choose the answer that is closest to what you calculate. 0.037 0.045 0.015 0.108 2.580

1 Answer

2 votes

Answer:

0.0374

+or-0.0374

Explanation:

z alpha/2=2.58

=2.58√(0.12(1-0.12)/500)

=0.0374

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