In an analysis of variance, how is the F statistic used?

OPTIONS

• To compare the mean square treatment with the mean square error
• To estimate the process average
• To find the variation within each subgroup
• To find the variation between different subgroups

ANSWER

To compare the mean square treatment with the mean square error

EXPLANATION

In an analysis of variance, the F statistic is used to compare the mean square treatment with the mean square error. The mean square treatment is the average variation between the subsets, while the mean square error is the sum of the squares of the residuals.