Homework Soursea The standard error is b The coefficient of determination
a) The standard error is _____?
b) The coefficient of determination is ____?
| y | 123.5 | 211.4 | 385.8 | 475.2 | 641.9 | 716.7 | 768.4 | 806.9 | 851.5 | 893.5 | 933.7 |
| x1 | 1.2 | 2.2 | 2.3 | 3.7 | 4.0 | 4.6 | 4.7 | 4.8 | 4.9 | 5.0 | 5.1 |
| x2 | 13.4 | 17.9 | 21.7 | 25.1 | 32.3 | 37.9 | 39.1 | 39.5 | 40.3 | 41.3 | 42.1 |
Solution
The required values can be obtained from excel:
Coefficient of determination is R2 = 0.98
Standard Error = 39.15
Hope this helps.
| y | x1 | x2 |
| 123.5 | 1.2 | 13.4 |
| 211.4 | 2.2 | 17.9 |
| 385.8 | 2.3 | 21.7 |
| 475.2 | 3.7 | 25.1 |
| 641.9 | 4 | 32.3 |
| 716.7 | 4.6 | 37.9 |
| 768.4 | 4.7 | 39.1 |
| 806.9 | 4.8 | 39.5 |
| 851.5 | 4.9 | 40.3 |
| 893.5 | 5 | 41.3 |
| 933.7 | 5.1 | 42.1 |
