Whole Body Vibration Exposure among the Tractor Operator during Soil Tillage Operation: An Evaluation using ISO 2631-5 Standard

Table 2

Analysis of variance for S_ed (8).

Source	DF	SeqSS	AdjMS	F-value	value	Percentage contribution (P)
Forward speed	2	13.92	6.96	62.89	0.01	64.43
Tilling depth	2	2.12	1.06	9.58	0.09	9.83
Pulling force	2	5.34	2.67	24.14	0.04	24.73
Residual error	2	0.22	0.11			1.01
Total	8	21.60				100.00