Politician Paul and Candidate Carl are running for governor, and the election is next week. The latest poll shows that Politician Paul has 46% of the vote, while Candidate Carl has 43% of the vote. The news report, however, states that this poll contains a 3% margin of error. a) What does this mean for Politician Paul? b) What does this mean for Candidate Carl? c) What do these poll results tell you about the upcoming election?

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.