Verify that for the data in given Exercise, if you use Y‾ = 2X - 9, the sum of the squared residuals is larger than 47. Why would you expect a value greater than 47?
Exercise
For the following pairs of points, verify that the least squares regression line is Y‾ = 1.8X - 8.5.
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X:
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5
|
8
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9
|
7
|
14
|
|
Y:
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3
|
1
|
6
|
7
|
19
|