Example of the All Pairs, Tukey HSD Test
This example uses the Oneway platform to illustrate the Tukey HSD test.
1. Select Help > Sample Data Folder and open Big Class.jmp.
2. Select Analyze > Fit Y by X.
3. Select weight and click Y, Response.
4. Select age and click X, Factor.
5. Click OK.
6. Click the Oneway Analysis red triangle menu and select Compare Means > All Pairs, Tukey HSD.
Figure 6.15 All Pairs, Tukey HSD Comparison Circles
Figure 6.16 Means Comparisons Report for All Pairs, Tukey HSD
In Figure 6.16, the Tukey-Kramer HSD Threshold matrix shows the actual absolute difference in the means minus the HSD. Pairs with a positive value are statistically significantly different at the specified alpha significance level. The q* value in the confidence quantile table represents the quantile that is used to scale the HSDs. It has a computational role comparable to the quantile in a Student’s t test.