The major private university in the region is attempting to lobby to the Commission on Higher Education that l would allow the university to charge a higher tuition rate than the other universities in the country. To provide a justification, the university plans to conduct a mail survey of its alumni to collect information concerning their current employment status. The university grants a wide variety of different degrees and wants to make sure that information is obtained about graduates from each of the degree types. A 5% sample of alumni is considered sufficient. Decide what sampling method you would use. Provide an explanation of why you selected a particular method of sampling.

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A: Given: number of success(x)=39number of sample(n)=200sample proportion(p^)=xn=39200=0.195

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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.