45. Test the claim that the mean GPA of night students is significantly different than the mean GPA of day students at the 0.01 significance level. The null and alternative hypothesis would be: H0:μN≥μDH0:μN≥μD H1:μN<μDH1:μN<μD H0:μN=μDH0:μN=μD H1:μN≠μDH1:μN≠μD H0:pN=pDH0:pN=pD H1:pN≠pDH1:pN≠pD H0:pN≥pDH0:pN≥pD H1:pNμDH1:μN>μD H0:pN≤pDH0:pN≤pD H1:pN>pDH1:pN>pD The test is: left-tailed

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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.