if a study has 3 groups 20 participants each and a oneway an

if a study has 3 groups, 20 participants each, and a one-way analysis of variance produces an F ratio of 6.21 that was significant at yhe .01 level, the results would be reported as?

Solution

Given no. of groups k = 3 and each sample size n = 20. F = 6.21

Given alpha = 0.01.

The critical value of F is 5.01 at alpha 1% and (k-1,n-k) = (2,57) df

Here F > F Critical we reject H0. That is, There is significance difference between the three groups.