In a random sample of 160 business school students, 72 sample members indicated some measure of agreement with this statement: Scores on a standardized entrance exam are less important for a student’s chance to succeed academically than is the student’s high school GPA. Test the null hypothesis that one-half of all business school graduates would agree with this statement against a two-sided alternative. Find and interpret the p-value of the test.

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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.