Table 4: Analysis of variance to determine statistical significance of difference in mean for all the groups
| Square of variation | D.F. |
Sum of square (SS) |
Mean sum of square (MSS) |
F-ratio | F-table (4,145,0.05) | p-value | |||||||
| Between group | 2 | 1.0712 | 0.2678 | 36.19 | 2.37 | < 0.05 | |||||||
| Within group | 87 | 1.0688 | 0.0074 | ||||||||||
| Total | 89 | 2.1400 |