Use the two regression lines to estimate when sales in grocery stores are likely to equal sales in warehouse clubs. What type of prediction did you just make? Explain.​ ​ ​ ​

MATLAB: An Introduction with Applications
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Use the two regression lines to estimate when sales in grocery stores are likely to equal sales in warehouse clubs. What type of prediction did you just make? Explain.​ ​ ​ ​
Mean seasonal sales (in milli
50000
45000
40000
35000
30000
25000
20000
15000
10000
5000
Grocery Stores vs. Warehouse Clubs Sales
y= 1,170x + 30,630
cc = 0.98
soft Notes
y=2090x + 6740
Cc - 0.99
Grocery
Warehouse Club
4
8
Years since 1998
Source: http://www.economagic.com/cenret.htm.
0.4
10
12
Transcribed Image Text:Mean seasonal sales (in milli 50000 45000 40000 35000 30000 25000 20000 15000 10000 5000 Grocery Stores vs. Warehouse Clubs Sales y= 1,170x + 30,630 cc = 0.98 soft Notes y=2090x + 6740 Cc - 0.99 Grocery Warehouse Club 4 8 Years since 1998 Source: http://www.economagic.com/cenret.htm. 0.4 10 12
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