Sources of Variation
Degrees of Freedom (DF)
Sum of Squares (SS)
Mean Squares (MS)
F-Cal
F-Tab (5%)
Among Treatments
t
a
-1
Among Treatments SS (T
a
SS)
Among Treatments MS=TMS=(T
a
SS)/(t
a
-1)
TMS/EMS
From statistical table
Within Treatments (Experimental error)
t
a
(r-1)
Within Treatments SS (ESS)=TSS-T
a
SS
Within Treatments MS (EMS)=ESS/(t
a
(r-1))
_
_
Total
t
a
r-1
Total SS (TSS)
_
_
_
(Obi, 2002)
Table 1:
The ANOVA Format for a Completely Randomized Design (CRD).
