Instruction 13.34
An automotive engineer would like to be able to predict automobile fuel economy. She believes that the two most important characteristics that affect economy are engine power and the number of cylinders (4 or 6) of a car. She believes that the appropriate model is
$\begin{array}{l}
Y = 40 - 0.05 X _ { 1 } + 20 X _ { 2 } - 0.1 X _ { 1 } X _ { 2 }\\
\text { where } \begin{aligned}
X _ { 1 } & = \text { engine power } \
X _ { 2 } & = 1 \text { if } 4 \text { cylinders, } 0 \text { if } 6 \text { cylinders } \
Y & = \text { economy expressed as kilometres. }
\end{aligned}
\end{array}$
-Referring to Instruction 13.34,the predicted number of kilometres for a 200 engine power,4-cylinder car is ___________.

Question

Quizplus · Accepted Answer

The Answer of Instruction 13.34
An automotive engineer would like to be able to predict automobile fuel economy. She believes that the two most important characteristics that affect economy are engine power and the number of cylinders (4 or 6) of a car. She believes that the appropriate model is
$\begin{array}{l}
Y = 40 - 0.05 X _ { 1 } + 20 X _ { 2 } - 0.1 X _ { 1 } X _ { 2 }\\
\text { where } \begin{aligned}
X _ { 1 } & = \text { engine power } \
X _ { 2 } & = 1 \text { if } 4 \text { cylinders, } 0 \text { if } 6 \text { cylinders } \
Y & = \text { economy expressed as kilometres. }
\end{aligned}
\end{array}$
-Referring to Instruction 13.34,the predicted number of kilometres for a 200 engine power,4-cylinder car is ___________.

Instruction 13 -Referring to Instruction 13