Question: Use the data in MEAP00_01.RAW to answer this question. (i) Estimate the model mathA = (0 + (1 lunch + (2 log(enroll) + (3log(exppp) +

Use the data in MEAP00_01.RAW to answer this question.
(i) Estimate the model
mathA = (0 + (1 lunch + (2 log(enroll) + (3log(exppp) + u
by OLS and obtain the usual standard errors and the fully robust standard errors. How do they generally compare?
(ii) Apply the special case of the White test for heteroskedasticity. What is the value of the F test? What do you conclude?

(iv) Obtain the standard errors for WLS that allow misspecification of the variance function. Do these differ much from the usual WLS standard errors?
(v) For estimating the effect of spending on math4, does OLS or WLS appear to be more precise?

log(i) on math4, math4 math4

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i ii iii The estimated equation is math4 9193 1996 2309 449 lunch 540 lenroll 015 094 017 113 n 1692 ... View full answer

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