Polls showed the two main candidates in the 2004 presidential election were nearly tied on the day before the election.

Polls showed 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 that has a margin of error of less than 1%. Roughly how large a sample would be needed for such a poll?

Polls showed the two main candidates in the 2004 presidential election were nearly tied on theday before the election. To predict the winner a newspaper would like to have a poll that has amargin...