Variation source
Degrees of freedom
F
calculate
E
h
(%)
E
c
(%)
Replication
3
3.39
ns
0.89
ns
Material
2
530.13**
89.64**
Vane shape
2
1321.50**
53.97**
Material × vane shape
4
48.27**
63.57**
** Significance at 1% level
ns
Non – significant
Table 1:
Analysis of the variance showing the effect of material of construction and shape of vane on hulling performance.