Create a Matrix to use in a Test of Independence on the TI-89

1. Press APPS 6:Data/Matrix Editor
2. Press 3:New
3. Arrow over and down to 2:Matrix.
4. Press Enter
5. Arrow down to Folder. Either use the one that is there or arrow over and down to another folder name (don't use statvars) and press Enter.
6. Arrow down to Variable and enter a name you will remember.
7. Arrow down to Row dimension and enter the number of rows you want.
8. Arrow down to Column dimension and enter the number of columns you want.
   (Note: You can change these numbers if you want for a different problem.)
9. Press Enter until you see your matrix with zeroes as the entries. Fill in your matrix with the data from the table.
10. Press APPS
11. Press 1:Flashapps
12. Press Enter
13. Press F6 TESTS
14. Press 8:Chi2 2-way
15. Enter the name of your matrix at Observed Mat:
16. Press Enter.
17. You should see the screen with the test statistic and the p-value.

To change the size of your matrix, press APPS 6:Matrix/Data Editor 2:Open.
Then fill in the OPEN screen with Matrix, the correct folder, and the correct name of your matrix.
Press Enter until you see your matrix.
To resize it, press F6 Util 6:Resize Matrix. Enter the row dimension and arrow down to column dimension and enter that number. Press Enter until you see your resized matrix.

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