What is the critical F value for a sample of 21 observations

What is the critical F value for a sample of 21 observations in the numerator and 15 in the denominator? Use a two-tailed test and the 0.02 significance level. (Round your answer to 2 decimal places.)

Solution

Here,

df1 = n1 -1 = 21 - 1 = 20
df2 = n2 - 1 = 15 - 1 = 14

Thus, by table/technology, at alpha = 0.02, as it is two tailed,

Fcrit = 0.32 and 3.51 [ANSWER]

If there is only one value needed, it is most likely the second one, 3.51.