A Multiple Regression Model Has the Form $\tilde { y } = 8 + 3 x _ { 1 } + 5 x _ { 2 } - 4 x _ { 3 }$

question 113

Multiple Choice

A multiple regression model has the form $\tilde { y } = 8 + 3 x _ { 1 } + 5 x _ { 2 } - 4 x _ { 3 }$ .As x₃ increases by one unit,with x₁ and x₂ held constant,the y on average is expected to:

• A) increase by 1 unit.
• B) increase by 12 units.
• C) decrease by 4 units.
• D) decrease by 16 units.

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