How much does ten pounds of weight change the estimated number of cups of dog
food consumed? Dog 1 2 3 4 5 6 7 8 9
Weight 0.41 1.48 0.79 0.41 0.85 1.11 0.37 1.11 0.41
Consumption in cups 3 8 5 4 5 6 3 6 3
Dog 10 11 12 13 14 15 16 17 18
Weight 0.91 1.09 2.07 0.49 1.13 0.84 0.95 0.57 1.68
Consumption in cups 5 6 10 3 6 5 5 4 9
Dog 1 2 3 4 5 6 7 8 9
Weight 0.41 1.48 0.79 0.41 0.85 1.11 0.37 1.11 0.41
Consumption in cups 3 8 5 4 5 6 3 6 3
Dog 10 11 12 13 14 15 16 17 18
Weight 0.91 1.09 2.07 0.49 1.13 0.84 0.95 0.57 1.68
Consumption in cups 5 6 10 3 6 5 5 4 9
We denote the weight as X and the consumption as Y. The means and standard deviations are
The parameters of the regression line are
The regression equation is Y = 1.3973 + 0.0425X
If the weight increases by 10 pounds the consumption increases by 0.425 cups.
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