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a. Use the data given in Table 9-5 (on the textbook s Web site) to develop a
multiple regression model to explain daily calorie intake for the 20 countries shown in the table.
b. Does this model suffer from heteroscedasticity? Show the necessary test(s).
c. If there is heteroscedasticity, obtain White s heteroscedasticity-corrected standard errors and t statistics (see if your software does this) and compare and comment on the results obtained in part (a) above. |
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