6 Regression Analysis
- Estimate the linear regression of 100 grain weight (y) on ear length
| X | 20.43 | 21.91 | 19.82 | 22.1 | 21.92 | 22.46 | 20.36 | 20.47 | 21.48 | 21.76 | 21.14 | 20.52 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Y | 3.92 | 4.42 | 4.17 | 4.32 | 4.39 | 3.57 | 3.92 | 3.3 | 4.25 | 3.91 | 3.87 | 4.47 |
- Following data represents yield and yield attributing characters, estimate linear regression of y on x1 and yon x2
| Grain yield (y) | Ear weight (x1) | Ear length (x2) |
|---|---|---|
| 85.65 | 2.04 | 20.28 |
| 83.85 | 2.5 | 20.04 |
| 96.37 | 2.15 | 21.65 |
| 117.03 | 2.11 | 20.04 |
| 115.79 | 2.74 | 21.2 |
| 68.69 | 2.02 | 22.11 |
| 108.45 | 2.14 | 20.01 |
| 50.68 | 1.64 | 19.76 |
| 98.26 | 2.24 | 20.19 |
| 108.07 | 2.55 | 21.73 |
| 88.74 | 2.19 | 21.98 |
| 101.41 | 1.99 | 21.86 |
| 72.28 | 2.53 | 20.1 |