The following information relates to questions 1-3. In a survey of 400likelyvoters,215respondedthat they would vote for the incumbent, and 185…

The following information relates to questions 1-3.

In a survey of 400 likely voters, 215 responded that they would vote for the incumbent, and 185 responded that they would vote for the challenger. Let p denote the fraction of all likely voters who preferred the incumbent at the time of the survey, and let

Construct a 95% confidence interval for p.

What will be the Upper and lower bound?

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