# What is the 95% confidence level for the following problem?

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A polling agency states that candidate Y currently has 40% of the vote in the upcoming election. The agency used a random sample of 500 people in the US generated by computer. What is the 95% confidence interval for this popular vote percentage reported?

A polling agency states that candidate Y currently has 40% of the vote in the upcoming election. The agency used a random sample of 500 people in the US generated by computer. What is the 95% confidence interval for this popular vote percentage reported?

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Apr 11, 2018