Refer to Exercise 17.14. The dean of the school of business wanted to improve the regression model,
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Refer to Exercise 17.14. The dean of the school of business wanted to improve the regression model, which was developed to describe the relationship between MBA program GPA and undergraduate GPA, GMAT score, and years of work experience. The dean now believes that an interaction effect may exist between undergraduate GPA and the GMAT test score.
a. Write the equation that describes the model.
b. Use a computer to generate the regression statistics. Use whatever statistics you deem necessary to assess the model’s fit. Is this model valid?
c. Compare your results with those achieved in the original example.
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a MBA GPA 0 1 Under GPA 2 GMAT 3 Work 4 Under GPA GMAT b F 1843 pvalue 0 ...View the full answer
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