Number of American elms with internal decay by injection history.
Injection history | |||
---|---|---|---|
Decay incidence | Injected | Non-injected | P-value1 |
Decay | 28 | 35 | 0.799 |
No decay | 63 | 84 | 0.868 |
n | 91 | 119 |
↵1Probability that there are no significant differences in injection history by decay frequency based on Chi-square analysis (using expected values) at P = 0.05.