EC351_F10_Test2

EC351_F10_Test2 - Name: _ EC 351 001: Econometrics I TEST 2...

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1 Name: _____________________________________________ EC 351 – 001: Econometrics I TEST 2 October 21, 2010 Instructions: Provide all answers on this exam paper. You must show all work to receive credit. You are allowed to use your notes on this exam, provided that they are written in your own handwriting. Make your final answer clear in order to receive full credit. Allocate your time appropriately across all questions and make sure to finish within the time limit of 75 minutes. Question values are shown beside each question as a percentage of the total exam grade.
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2 1. (14%) What three factors would lead to a more precise estimate of 1 ? Make clear statements and provide a formal measure of precision to support your answer.
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3 2. You have the following data values of variables X and Y . X Y -1 8 1 2 0 -1 a. (8%) Determine the least squares regression line. b. (8%) Calculate TSS, ESS, and SSR.
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4 3. (14%) What is the relationship between the mean of Y and the mean of Y ? Explain why this relationship holds.
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5 4.
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EC351_F10_Test2 - Name: _ EC 351 001: Econometrics I TEST 2...

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