The manager of a fast food restaurant wants to determine how sales in a given week are related to the number of discount vouchers (#) printed in the local newspaper during the week. The number of vouchers and sales ($000s) from 10 randomly selected weeks is given below with Excel regression output. $$\begin{array} { | c | c | }
\hline \text { Number of vo uchers } & \text { Sales } \
\hline 4 & 12.8 \
\hline 7 & 15.4 \
\hline 5 & 13.9 \
\hline 3 & 11.2 \
\hline 19 & 18.7 \
\hline 10 & 17.9 \
\hline 8 & 16.8 \
\hline 6 & 15.9 \
\hline 3 & 11.5 \
\hline 5 & 13.9 \
\hline
\end{array}$$ a. Write down the regression equation
b. Interpret the slope.

Question

The manager of a fast food restaurant wants to determine how sales in a given week are related to the number of discount vouchers (#) printed in the local newspaper during the week. The number of vouchers and sales ($000s) from 10 randomly selected weeks is given below with Excel regression output. $$\begin{array} { | c | c | } 
\hline \text { Number of vo uchers } & \text { Sales } \
\hline 4 & 12.8 \
\hline 7 & 15.4 \
\hline 5 & 13.9 \
\hline 3 & 11.2 \
\hline 19 & 18.7 \
\hline 10 & 17.9 \
\hline 8 & 16.8 \
\hline 6 & 15.9 \
\hline 3 & 11.5 \
\hline 5 & 13.9 \
\hline
\end{array}$$  a. Write down the regression equation
b. Interpret the slope.

Quizplus · Accepted Answer

The Answer of The manager of a fast food restaurant wants to determine how sales in a given week are related to the number of discount vouchers (#) printed in the local newspaper during the week. The number of vouchers and sales ($000s) from 10 randomly selected weeks is given below with Excel regression output. $$\begin{array} { | c | c | } 
\hline \text { Number of vo uchers } & \text { Sales } \
\hline 4 & 12.8 \
\hline 7 & 15.4 \
\hline 5 & 13.9 \
\hline 3 & 11.2 \
\hline 19 & 18.7 \
\hline 10 & 17.9 \
\hline 8 & 16.8 \
\hline 6 & 15.9 \
\hline 3 & 11.5 \
\hline 5 & 13.9 \
\hline
\end{array}$$  a. Write down the regression equation
b. Interpret the slope.

The Manager of a Fast Food Restaurant Wants to Determine