The marketing manager of a large super market chain has the business objective of using shelf space most efficiently. Toward that goal, she would like to use shelf space to predict the sales of a specialty pet food. Data are collected from a random sample of 12 equal-sized stores, with the following results (stored in Pet Food):

a. Construct a scatter plot.
For these data, b0 = 145 and b1 = 7.4.
b. Interpret the meaning of the slope, b1 in this problem.
c. Predict the weekly sales of pet food for stores with 8 square feet of shelf space for pet food.

Transcribed Image Text:

Weekly Sales ()(S) Shelf Space (X)(square feet) Store 160 220 140 190 240 260 230 270 280 260 290 310 10 10 10 15 15 10 12 20