The F ratio is computed to determine
A) whether the members of a sample have been randomly selected from a population.
B) the statistical significance of the difference between the mean scores of two or more groups.
C) whether two or more groups have different frequency distributions on a categorical variable.
D) all of the above.

Question

Quizplus · Accepted Answer

The F ratio is used in analysis of variance (ANOVA) to determine the statistical significance of the difference between the mean scores of two or more groups. It compares the variance between groups to the variance within groups to assess if the group means differ more than would be expected by chance.

The F Ratio Is Computed to Determine