An analysis of variance produces SSbetween 30 SSwithin 60

An analysis of variance produces SSbetween = 30, SSwithin = 60, and an F-ratio with df = 2, 15. For this analysis, what is the completed F-ratio? I\'m confused as to how to find the F-ratio.

Solution

you just need to use this formula

F = MS between / MS within

MS between = SSbetween / df between

MS within = SS within / df within

MS between = 30 / 2

MS within = 60 / 15

F ratio = (30/2)/(60/15) = 15/4 = 3.75