ANOVA will tell you whether there is a statistically significant difference in the population means of three or more groups of data. But which means are different? Tukey’s will tell you that.
which follows the ANOVA table in Figure 10.7, represents the proportion of variability accounted for by the independent variable. Approximately 28% of the variability in the ozone level can be ...
For each score type that you specify, PROC NPAR1WAY computes a one-way ANOVA statistic and also a ... used to test for scale differences: Siegel-Tukey, Ansari-Bradley, Klotz and Mood. This section ...