In a simple random sample of 400 voters, 220 said that they were planning to vote for
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In a simple random sample of 400 voters, 220 said that they were planning to vote for the incumbent mayor in the next election. Construct a 99% confidence interval for the proportion of voters who plan to vote for the incumbent mayor in the next election.
In Exercises 5–12, state which type of parameter is to be estimated, then construct the confidence interval.
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