(A) Set up null and alternative hypotheses (H0: population variances are equal)
(B) Set alpha level
(C) Test statistic is Chi-square = (df, N) = xx.xx, df = k -1, p = probability region in right tail of Chi-square(df)*
(D) Conclusion: Reject H0 if p < alpha
* Bartlett's test statistics computed by two-variable MEANS command