The Student's t Distribution t tests are used to see how likely a
mean comes from a given distribution or, more often, whether two means
come from the same distribution. This applet illustrates through
sampling distributions of the t statistic to examine what it takes to use this
test to make conclusions. (Straight to applet)
The F Distribution The Analysis of
Variance (ANOVA) uses the F statistic to determine of there exist
differences when more than two means are being compared. This
statistics ultimately computes the ratio of two variances. This applet illustrates through
sampling distributions of the F statistic to examine what it takes to use this
test to make conclusions. (Straight to applet)