The following equation was estimated by OLS: Unipa = 1.392 - 0.0135 psperc + 0..00148 sat n = 4,137, R2 = 0.273 Where unipa is measured on a four-point scale, psperc is the percentile in the post-...

Extracted text: The following equation was estimated by OLS: Unipa = 1.392 - 0.0135 psperc + 0..00148 sat n = 4,137, R2 = 0.273 Where unipa is measured on a four-point scale, psperc is the percentile in the post- sixteen class (defined so that, for example, psperc =5 means the top 5% of the class), and sat is the combined maths and verbal scores on the student achievement test.


Extracted text: Suppose that two post-sixteen students, A and B, both end their studies in the same percentile, but Student A's SAT score was 140 points higher (about one standard deviation in the sample). What is the predicted difference in university GPA for these two students? Is the difference large?