Assume That You Had Estimated the Following Quadratic Regression Model

question 56

Multiple Choice

Assume that you had estimated the following quadratic regression model = 607.3 + 3.85 Income - 0.0423 Income2.If income increased from 10 to 11 ($10,000 to $11,000) ,then the predicted effect on testscores would be

• A)3.85
• B)3.85-0.0423
• C)Cannot be calculated because the function is non-linear
• D)2.96

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