HOW TO PERFORM F TEST USING DATA WITH TI83 CALCULATOR

Steps	Key Sequence	Screens
1. Enter data into list, L1
2. Enter data into list, L2
3. Set up Stats Tests	STAT
	twice
	APLHA, then x -1 key (for 2SampFTest...)
4. Select Data	use left arrow key (if necessary) to move cursor to Data, then ENTER
5. Select list, L1	(press ALPHA), then 2nd, then 1, then ENTER
6. Select list, L2	(press ALPHA), then 2nd, then 2, then ENTER
7. Select appropriate test	twice, then use right and left arrow keys to move cursor to appropriate test, then ENTER
8. Calculate F–Test	once
	ENTER
9. Scroll down to find more calculations	Press once
In this case, the test was Ha: σ1 > σ2; the F statistic is 4.611; the p–value is 0.00124; etc.
10. Draw the test	repeat steps 1 through 7 (the data should already be stored!), then once, then ENTER