The marketing manager of a large supermarket chain would like to use shelf space to predict the sales of pet food. A random sample of 12 equal-sized stores is selected, with the following results g. Should you use this model to predict the sales of pet food for stores with 25 feet of shelf space for pet food? Why? h. Determine the coefficient of determination, r2. Explain.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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The marketing manager of a large supermarket chain would like to use shelf space to predict the sales of pet food. A random sample of 12 equal-sized stores is selected, with the following results g. Should you use this model to predict the sales of pet food for stores with 25 feet of shelf space for pet food? Why? h. Determine the coefficient of determination, r2. Explain.
Store
Shelf space (X) (feet)
Weekly sales (Y) ($)
1
5
160
2
5
220
3
5
140
4
10
190
5
10
240
10
260
7
15
230
8
15
270
15
280
10
20
260
11
20
290
12
20
310
Transcribed Image Text:Store Shelf space (X) (feet) Weekly sales (Y) ($) 1 5 160 2 5 220 3 5 140 4 10 190 5 10 240 10 260 7 15 230 8 15 270 15 280 10 20 260 11 20 290 12 20 310
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