One-Way ANOVAapplet FP
The black dots are at the means of the three groups. Move these up and down until you get a configuration that gives a P-value of about 0.01. What is the value of the F statistic?
Now increase the variation within the groups by sliding the standard deviation bar to the right. Describe what happens to the F statistic and the P-value.
Using between- and within-group variation, explain why the F statistic and P-value change in this way.