An  urban economist wishes to test the claim that the distribution of United States residents in the United States is different today than it was in 1999.  In 1999, 19.6 % of the population of the United States resided in the Northeast; 23.0 % of the population of the United States resided in the Midwest; 35.4 % of the population of the United States resided in the South; 22.0 % of the population of the United States resided in the West.  The economist randomly selects 2000 households in the United States and obtains the frequency distribution below. Region Frequency Northeast 365 Midwest 404 South 752 West 479 Test the claim that the distribution of residents in the United States is different today from the distribution in 1999 at alpha = .05

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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.