econ466mt1 - x chosen in part (d), identify the f tted...

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Economics 466: Introductory Econometrics State University of New York at Binghamton Department of Economics Fall 2011 Midterm I Theexamcons istso fthreequest ionsonthree pages. Each question is of equal value. 1. Consider the residuals obtained via an OLS regression of y on x , i.e. y = φ + δx + v . Show the following: (a) n X i =1 b v i =0 (b) n X i =1 b v i x
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2. Consider the scatter plot below. In the plot, please note the following: (a) Label the axes. (b) Draw and label the estimated regression line. (c) Identify the estimated intercept and slope of the regression line. (d) Pick two distinct values of x and identify the corresponding values for y . (e) For each of the two values of
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Unformatted text preview: x chosen in part (d), identify the f tted value and residual. 2 3. In the course packet we are concerned with the impact of homework on test scores. In the regression below we regress test scores solely on an intercept term. Please use the EViews table below to answer the following questions: (a) What is the value of the coe ffi cient c(1)? (b) What is the intuition for the result in part (a)? (c) In this model, what is the impact of an additional hour of homework per week on test scores? (d) What is the value of R 2 in this regression? (e) What is the intuition for the result in part (d)? 3...
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This note was uploaded on 02/02/2012 for the course ECON 466 taught by Professor Henderson during the Fall '08 term at Binghamton.

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econ466mt1 - x chosen in part (d), identify the f tted...

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