A professor at a large university believes that students take an average of 16 credit hours per term. A random sample of 24 students in her class of 250 students reported the following number of credit hours that they were taking. Does this sample indicate that students are taking more credit hours than the professor believes?   What is the test statistic?  2 decimal places   Find a 95% confidence interval for the number of credit hours taken by the students in the professor’s class.

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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.