In a Multiple Regression Analysis,the Least Squares Prediction Equation Is $\hat { y }$

question 106

Multiple Choice

In a multiple regression analysis,the least squares prediction equation is computed as $\hat { y }$
= 84.2 + 6.3x₁ - 9.4x₂.If we hold x₂ constant and increase x₁ by 2 units,what is the estimated change in the mean value of y?

• A)-18.8
• B)-9.4
• C)12.6
• D)6.3
• E)90.5

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