(a) ANOVA test
| Source factor: error rate | |||||
|---|---|---|---|---|---|
| Sum of squares | df | Mean square | F | Sig. | |
| Between groups | 638680.9 | 5 | 127736.1796 | 15.26182 | 0.000 |
| Within groups | 3414820 | 408 | 8369.657384 | ||
| Total | 4053501 | 413 | |||
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