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(a)
| df | ss | mss | F value | P value | Significance | |
|---|---|---|---|---|---|---|
| Treatment | 2 | 3805.016667 | 1902.508333 | 5.96 | 0.00350 | ∗∗ |
| Concentration | 3 | 82616.166667 | 27538.722222 | 86.30 | 86.30 | ∗∗ |
| Treatment* Concentration | 6 | 4190.583333 | 698.430556 | 2.19 | 0.04950 | ∗ |
| Error | 108 | 34464.200000 | 319.112963 |
