(Solution) - Using the data in GPA3 RAW the following equation was estimated -(2025 Original AI-Free Solution)
Paper Details
Using the data in GPA3.RAW, the following equation was estimated for the fall and second semester students:
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(i) Do the variables crsgpa, cumgpa, and tothrs have the expected estimated effects? Which of these variables are statistically significant at the 5% level? Does it matter which standard errors are used?
(ii) Why does the hypothesis H0: (crsgpa - 1 make sense? Test this hypothesis against the two-sided alternative at the 5% level, using both standard errors. Describe your conclusions.
(iii) Test whether there is an in-season effect on term GPA, using both standard errors. Does the significance level at which the null can be rejected depend on the standard error used?