Suppose, upon constructing a 95% confidence interval based on your sample proportion of 0.28, you obtain the following interval: 0.201 to 0.359. Notice that the sample proportion of 0.28 is between the values of 0.201 and 0.359. Does this surprise you? Please explain why or why not.

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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.