Homework1 (2).doc

# Homework1 (2).doc - HOMEWORK ASSIGNMENT 1 ECON 399(B2...

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HOMEWORK ASSIGNMENT # 1 ECON 399 (B2): INTRODUCTORY ECONOMETRICS Mengzhen Xia 1477468 Econ 399 (Introductory Econometrics) Spring 2017 (McGee) 1

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HOMEWORK ASSIGNMENT # 1 ECON 399: INTRODUCTORY ECONOMETRICS Total points: 10 DUE: 2PM on February 17 (Friday) 1 1. Go to Econ 399 eClass (Homework Assignments Folder) and find dataset “homework1data.dta.” Save the data to your computer. The variables in the data file are: - midterm : number of points earned on the midterm - homework : number of points earned on the homework assignment that preceded the midterm - labs : number of points earned on the lab assignments that preceded the midterm a. (6 points) Estimate the following regression model ( i denotes a student): midterm i = ß 0 + ß 1 homework i + ß 2 labs i + u i b. (2 points) Comment on the size, sign, and statistical significance of all slope coefficients and the constant. Also comment on the goodness-of-fit measure. Are your results expected? c. ( 1 point ) Test whether the effect of “performance on the homework” on the “success in the midterm” is positive.

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