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Accident rates by union and health and safety committee (%)
| No committee | Joint committee | Exclusive health and safety committee | F statistics (p) | |
|---|---|---|---|---|
| Union | 1.18 | 0.34 | 0.75 | 22.24 (0.00) |
| Nonunion | 1.08 | 0.61 | 0.46 | 51.52 (0.00) |
| F statistics (p) | 1.32 (0.25) | 11.18 (0.00) | 31.40 (0.00) | 25.86 (0.00) |
F statistics at the end of columns and rows are obtained by one-way analysis of variance (ANOVA). F statistics at the right corner of the table is obtained by two-way ANOVA.
