Finding the Least Squares Regression LineIn Exercises 21–24, (a) find the least squares regression line and (b) calculate
(a)
To calculate: The least squares regression line for the data points using the figure given below:
Given: The figure:
Formula used: The line
Calculation: For the 4 data points in the given figure:
x | y | Xy | |
0 | 0 | 9 | |
1 | 1 | ||
1 | 1 | 1 | 1 |
3 | 2 | 6 | 9 |
(b)
To calculate: The values of the sum of squared errors, S.
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