In the 2004 presidential election, exit polls from the critical state of Ohio provided the following results: For respondents with college degrees, 53% voted for Bush and 46% voted for Kerry. There were 2020 respondents. Calculate a 95% confidence interval for the difference in the two proportions.

Q: 2p=18

A:

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A:

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A:

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Q: 6x=47 x=?

A: