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Table 3B: Analysis of variance to determine statistical significance of difference in mean for Shofu 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 | 0.685 | 0.0343 | 1.26 | 3.37 | > 0.05 | |||||||
| Within group | 27 | 0.7355 | 0.0272 | ||||||||||
| Total | 29 | 0.8040 |
p > 0.05 - no significant difference
