Answer:
3.239
Step-by-step explanation:
Given the ANOVA table :
_______DF _____SS____ MS___ F___ p
Factor __3 ___13.500__ 4.500 _5.17 __0.011
Error ___16 __ 13.925 ___0.870
Total ___19 __ 27.425
The critical value for the F - test at 95%
Using the F- test critical value calculator :
Where α = 1 - 95% = 1 - 0.95 = 0.05
Numerator degree of freedom = (DF of factor) = 3
Denominator degree of freedom = (DF of Error) = 16
Significance level = 0.05
Inputting the values into the calculator gives a F critical value of 3.239