Basic Statistics Timed Question 4. Need in 50 Minutes!

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Question 4

Polls showed that the two main candidates in the 2004 presidential election were nearly tied on the day before the election. To predict the winner, a newspaper would like to have a poll which has margin of error of 5%. Roughly how large a sample would be needed for such a poll? (Hint: since candidates are nearly tied, each has roughly 50% of the vote.)

400

625

1000


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(Top Tutor) Daniel C.
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