MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The accompanying data table includes the engine size (in liters) and horsepower (HP) of 20 types of cars sold last year.
Engine_Size Horsepower
3.6 246
6.2 501
6.0 435
3.4 262
3.0 258
3.5 243
3.8 321
4.0 309
4.2 362
1.4 142
1.5 124
3.6 308
1.6 155
1.8 167
5.3 422
2.0 157
2.3 185
2.4 227
2.5 183
2.8 259
(b) Estimate the linear equation using least squares. Interpret the fitted intercept and slope. Be sure to include their units. Note if either estimate represents a large extrapolation and is consequently not reliable.
Complete the equation for the fitted line below.
Estimated Horsepower (HP) =....+(....) Engine Size (L)
(c) Interpret the summary values r^2 and Se , associated with the fitted equation. Attach units to these summary statistics as appropriate.
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