Question: Use the data in GPA2 for this exercise. (i) Using all 4,137 observations, estimate the equation colgpa 5 b0 1 b1hsperc 1 b2sat 1 u

Use the data in GPA2 for this exercise.

(i) Using all 4,137 observations, estimate the equation colgpa 5 b0 1 b1hsperc 1 b2sat 1 u and report the results in standard form.

(ii) Reestimate the equation in part (i), using the first 2,070 observations.

(iii) Find the ratio of the standard errors on hsperc from parts (i) and (ii). Compare this with the result from (5.10).

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