In the 2004 presidential election, exit polls from the
Chapter 10, Problem 85E(choose chapter or problem)
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.
(a) Is there a significant difference in these proportions? Use \(\alpha=0.05\). What is the P-value?
(b) Calculate a 95% confidence interval for the difference in the two proportions and comment on the use of this interval to answer the question in part (a).
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