Using the same approach as was employed to derive Eqs. (13.15) and (13.16), derive the least-squares fit of the following model:
y = a1 x + e
That is, determine the slope that results in the least-squares fit for a straight line with a zero intercept. Fit the following data with this model and display the result graphically.
x | 2 | 4 | 6 | 7 | 10 | 11 | 14 | 17 | 20 |
y | 4 | 5 | 6 | 5 | 8 | 7 | 6 | 9 | 12 |
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