Test the claim that the mean GPA of night students is larger than the mean GPA of day students at the .005 significance level. The null and alternative hypothesis would be: The test is: A. right-tailed B. left-tailed C. two-tailed The sample consisted of 75 night students, with a sample mean GPA of 3.23 and a standard deviation of 0.06, and 60 day students, with a sample mean GPA of 3.2 and a standard deviation of 0.08. test statistic =

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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.