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In the race for mayor of Columbus, Ohio, in 1999, one poll found that 61.1% of t

ID: 3150096 • Letter: I

Question

In the race for mayor of Columbus, Ohio, in 1999, one poll found that 61.1% of those surveyed would vote for the Democratic candidate. The poll had a 4.1% margin of error with 95% confidence. We may correctly conclude:

A) that if the poll were repeated many times and a 95% confidence interval computed for each, approximately 95% of these would show the Democratic candidate to have the majority of the vote.

B) if the poll were repeated many times and a 95% confidence interval computed for each, approximately 95% of these would include the true percentage of the population that would vote for the Democratic candidate.

C) there is a 95% probability that the Democratic candidate will receive the majority of the vote because the interval does not include 50%.

Explanation / Answer

if the poll were repeated many times and a 95% confidence interval computed for each, approximately 95% of these would include the true percentage of the population that would vote for the Democratic candidate.

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