The 2004 presidential election exit polls from the critical state of Ohio provided the following res


Question: The 2004 presidential election exit polls from the critical state of Ohio provided the following results. There were 2020 respondents in the exit polls and 768 were college graduates. Of the college graduates, 412 voted for George Bush.

(a) Calculate the 95% confidence interval for the proportion of college graduates in Ohio that voted for George Bush.

(b) Calculate a 95% lower confidence interval for the proportion of college graduated that voted for George Bush.

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