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Introductory Econometrics 4th Edition by Jeffrey Wooldridge
Edition 4ISBN: 978-0324660609Introductory Econometrics 4th Edition by Jeffrey Wooldridge
Edition 4ISBN: 978-0324660609 Exercise 4
Use the data in INJURY.RAW for this exercise.
(i) Using the data for Kentucky, reestimate equation, adding as explana¬tory variables male, married, and a full set of industry and injury type dummy variables. How does the estimate on afchnge-highearn change when these other factors are controlled for Is the estimate still statistically significant
(ii) What do you make of the small R-squared from part (i) Does this mean the equation is useless
(iii) Estimate equation using the data for Michigan. Compare the estimates on the interaction term for Michigan and Kentucky. Is the Michigan estimate statistically significant What do you make of this
(i) Using the data for Kentucky, reestimate equation, adding as explana¬tory variables male, married, and a full set of industry and injury type dummy variables. How does the estimate on afchnge-highearn change when these other factors are controlled for Is the estimate still statistically significant
(ii) What do you make of the small R-squared from part (i) Does this mean the equation is useless
(iii) Estimate equation using the data for Michigan. Compare the estimates on the interaction term for Michigan and Kentucky. Is the Michigan estimate statistically significant What do you make of this
Explanation
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(i)
Using the data for Kentucky, estimat...
Introductory Econometrics 4th Edition by Jeffrey Wooldridge
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