The marketing manager of a large supermarket chain would like touse shelf space to predict the sales of pet food. A random sampleof 12 equal-sized stores is selected, with the followingresults.
Shelf Space | Sales | Aisle Location |
5 | 160 | 0 |
5 | 220 | 1 |
5 | 140 | 0 |
10 | 190 | 0 |
10 | 240 | 0 |
10 | 260 | 1 |
15 | 230 | 0 |
15 | 270 | 0 |
15 | 280 | 1 |
20 | 260 | 0 |
20 | 290 | 0 |
20 | 310 | 1 |
A. Construct a scatter plot for these data, b0 = 145and b1 = 7.4.
B. Interpret the meaning of the slope, b1, in thisproblem.
C. Predict the mean weekly sales (in hundreds of dollars) of petfood for stores with 8 feet of shelf space for pet food.
D. What does the coefficient of determination indicate about theindependent variable?
