Finding F critical for ANOVA
Use the F-distribution to find the degrees of freedon for the numerator (d.f.N.), the degrees of freedom for the Denominator (d.f.D.) and the critical F-value
Use the closest value when looking up the d.f.N. and d.f.D. in the tables.
alpha
α
Number of Treatments
Number of Observations
d.f.N.
d.f.D.
F critical
0.05
3
22
4
20
0.01
24
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