14-30 Introduction to Multiple Regression
-Referring to Scenario 14-7, the estimate of the unit change in the mean of Y per unit change in $X _ { 1 } \text {, holding } X _ { 2 }$ constant, is ________.

Question

14-30 Introduction to Multiple Regression 
-Referring to Scenario 14-7, the estimate of the unit change in the mean of Y per unit change in $X _ { 1 } \text {, holding } X _ { 2 }$ constant, is ________.

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The Answer of 14-30 Introduction to Multiple Regression 
-Referring to Scenario 14-7, the estimate of the unit change in the mean of Y per unit change in $X _ { 1 } \text {, holding } X _ { 2 }$ constant, is ________.

14-30 Introduction to Multiple Regression -Referring to Scenario 14-7 X1, holding X2X _ { 1 } \text {, holding } X _ { 2 }X1​, holding X2​

14-30 Introduction to Multiple Regression
-Referring to Scenario 14-7 $X _ { 1 } \text {, holding } X _ { 2 }$