Question: The following multiple regression model was developed to predict job performance as measured by a company job performance evaluation index based on a preemployment test
The following multiple regression model was developed to predict job performance as measured by a company job performance evaluation index based on a preemployment test score and college grade point average (GPA):
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Where

a) Forecast the job performance index for an applicant who had a 3.0 GPA and scored 80 on the preemployment test.
b) Forecast the job performance index for an applicant who had a 2.5 GPA and scored 70 on the preemployment test.
y = 35+20x + 50x
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