Posted by **Andrew** on Wednesday, July 24, 2013 at 3:17am.

Any ideas please?

Simple random sample of voters will be taken in a large state. Researchers will construct an approximate 95% confidence interval for the percent of the state¢s voters who will vote for Candidate A. Find the minimum sample size needed to ensure that the width of the interval (right end minus left end) is at most 6%.

Thank you.

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