x is Sales; y is Advertisement 7000.00 y = 3.957x - 226.62 R = 0.9411 6000.00 5000.00 4000.00 3000.00 2000.00 1000.00 0.00 0.00 200.00 400.00 600.00 800.00 1000.001200.001400.001600.001800.00 Advertisement Sales

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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H. Use the model to predict sales when the business spends $885 ($'000) in the advertisement. Does the model underestimate or overestimate sales?

G. What is the value of the coefficient of determination, R2? What does R2 tell us about explained variation in y? (Refer to Coefficient of Determination LO 12-4).

 

H. Use the model to predict sales when the business spends $885 ($'000) in the advertisement. Does the model underestimate or overestimate sales?

x is Sales; y is Advertisement
7000.00
y = 3.957x - 226.62
R = 0.9411
6000.00
5000.00
4000.00
3000.00
**......
2000.00
1000.00
0.00
0.00
200.00 400.00 600.00 800.00 1000.001200.001400.001600.001800.00
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Transcribed Image Text:x is Sales; y is Advertisement 7000.00 y = 3.957x - 226.62 R = 0.9411 6000.00 5000.00 4000.00 3000.00 **...... 2000.00 1000.00 0.00 0.00 200.00 400.00 600.00 800.00 1000.001200.001400.001600.001800.00 Advertisement Sales
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