Table 8:
Analysis of variance of yield.
ANOVA
Sum of squares
Degrees of freedom
Mean square
F
cal
F
tab
P
Regression*
2,367.4
8
295.9
93.1
3.4
0.0196
Residue
25.4
8
3.2
-
-
-
Lack-of-fit
103.9
6
17.3
17.7
19.3
0.0546
Pure error
2.0
2
1.0
-
-
-
Total
2,392.8
16
-
-
-
-
*Significant effects at 5% significance.