Table 4 Results of the ANOVA test.
From: Re-evaluation of excavation class limits for underground excavations based on new data
Groups | Sample Size | Total | Mean | Variance | |||
|---|---|---|---|---|---|---|---|
Group-1 (RMR89) | 16 | 868.45 | 54.27813 | 80.71298958 | |||
Group-2 (Q) | 16 | 76.9 | 4.80625 | 13.346705 | |||
Group-3 (GSI) | 16 | 950 | 59.375 | 220.65 | |||
Group-4 (σcm) | 16 | 152.82 | 9.55125 | 96.954785 | |||
Source of variation | Sum of squares | Degre of freedom | Mean square | F-value | P-value | F criterion | |
|---|---|---|---|---|---|---|---|
Between Groups | 39826.43 | 3 | 13275.48 | 128.9931707 | 4.00015E-26 | 2.758078296 | |
Within Groups | 6174.967 | 60 | 102.9161 | ||||
Total | 46001.4 | 63 | |||||