The critical value of F is approximately 4.9646 when rounded to four decimal places.
To find the critical value of F at the 0.1 level, you'll need to know the degrees of freedom for the numerator (degrees of freedom among treatments) and the denominator (degrees of freedom for error).
From your table:
Degrees of freedom among treatments (DF1) = DF among treatments = 1
Degrees of freedom for error (DF2) = DF error = 10
Now, to find the critical value of F at the 0.1 level, you can use statistical tables or software.
For a significance level of 0.1, with DF1 = 1 and DF2 = 10, the critical value of F is approximately 4.9646 when rounded to four decimal places.