How to run a one-way ANOVA followed by multiple comparisons tests with XLSTAT?

The data correspond to an experiment where 4 new toothpaste formulas were each tested on 6 different patients in order to measure their effect on the whiteness of teeth. All patients had previously used the same toothpaste.

Using the ANOVA function of XLSTAT we want to find out if the results differ according to the formula used and, if so, which formula is the most effective. The case is a one-way balanced ANOVA because there is only one factor - the formula - and the number of repetitions is the same for each formula.

[TheMinderEngineer]

Keep hustling, big things incoming! 🚀

[pierrehelwi]

I can't select multiple comparisons on the new software. Can anyone help?

[rubiko]

how can i do a DBC whit this program?
can you please help me?.

[hayfordofori]

The Tukey post hoc is not active on the trial version, any help. I have followed the sample video on u-tube but can't activate it.