Difference in means small relative to overall variability
Difference in means large relative to overall variability
Larger F-values typically yield more significant results. How large depends on the degrees of freedom (I − 1 and N − I).
The ANOVA F-statistic compares variation due to specific sources (levels of the factor) with variation among individuals who should be similar (individuals in the same sample).
F tends to be small
F tends to be large
The ANOVA F-test