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Table 1B: Analysis of variance to determine statistical significance of difference in mean for Sof-Lex polishing system
| Square of variation | D.F. |
Sum of square (SS) |
Mean sum of square (MSS) |
F-ratio | F-table (2,27,0.05) | p-value | |||||||
| Between group | 2 | 0.0248 | 0.0124 | 41.33 | 3.37 | < 0.05 | |||||||
| Within group | 27 | 0.0087 | 0.0003 | ||||||||||
| Total | 29 | 0.03351 |
p < 0.05 - significant difference
