F-Test Stipulations

In order to apply this equation, we must first stipulate that s21 represents the larger of the two sample variances, and that s22 represents the smaller of the two variances.  Second, the values of s21 and s22 must correspond to n1 and n2, respectively.  n1 and n2, along with the significance level  are used in determining the rejection region within the graph.  The F-distribution table requires three variables:

The F-Distribution Table

Using the equations and conditions above, we are prepared to confront the F-Test Procedures.