F-Test (ANOVA)
From Q
The test statistics is:
where:
-
is the value of the
th of
observations in the
th of
groups,
-
is the average in the
th group,
-
is the overall average
-
is the calibrated weight.
- and
is evaulated using the F-distribution with
and
degrees of freedom.
(This is Type III Sum of Squares ANOVA.)