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Introduction to Econometrics 3rd Edition by James Stock, James Stock
Edition 3ISBN: 978-9352863501Introduction to Econometrics 3rd Edition by James Stock, James Stock
Edition 3ISBN: 978-9352863501 Exercise 8
Suppose that (Y i, X i ) satisfy the assumptions in Key Concept 4.3 and, in addition, u i , is N( 0, 2 ,) and is independent of X i. A sample of size n = 30 yields 
where the numbers in parentheses are the homoskedastic-only standard errors for the regression coefficients.
a. Construct a 95% confidence interval for 0.
b. Test H 0 : 1 = 55 vs. H 1 : 1 55 at the 5% level.
c. Test H 0 : 1 = 55 vs. H 1 : 1 55 55 at the 5% level.
where the numbers in parentheses are the homoskedastic-only standard errors for the regression coefficients.
a. Construct a 95% confidence interval for 0.
b. Test H 0 : 1 = 55 vs. H 1 : 1 55 at the 5% level.
c. Test H 0 : 1 = 55 vs. H 1 : 1 55 55 at the 5% level.
Explanation
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It is given that 
satisfy the least squa...
Introduction to Econometrics 3rd Edition by James Stock, James Stock
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