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For the Following Regression Equation y~=75+20x1−15x2+5x1x2\tilde { y } = 75 + 20 x _ { 1 } - 15 x _ { 2 } + 5 x _ { 1 } x _ { 2 }

Question 7

Multiple Choice

For the following regression equation y~=75+20x1−15x2+5x1x2\tilde { y } = 75 + 20 x _ { 1 } - 15 x _ { 2 } + 5 x _ { 1 } x _ { 2 } ,a unit increase in x2,while holding x1 constant at 1,changes the value of y on average by:


A) -5
B) +5
C) 10
D) -10

Correct Answer:

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