P-Value of 2-way ANOVA in TI Nspire

The TI Nspire CX provided very convenient facility to perform 2-way ANOVA analysis. The P-values are displayed in the spreadsheet as well as being stored in designated variables that can be recalled from the calculator screens and other applications.

anova-F-stat1

As shown above, the last two equations are refresher of how the P-values are determined from the F statistics.

Graphical representation can also be plotted in the Graph application. With the aid of the Integral tool, the shaded area in the below example represents the area from 0 to the F statistics. Recall that the whole area under the curve is 1, the P-value from F statistics to infinity is then 1 – 0.961 = 0.039

anova-F-stat2

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