HOW TO PERFORM TWO SAMPLE T TEST WITH TI83 CALCULATOR

Steps	Key Sequence	Screens
1. Set up Stats Tests	STAT
	twice
	4 (for 2–SampTTest...)
2. Select Stat	use right arrow key (if necessary) to move cursor to Stat, then ENTER
3. Input mean of SAMPLE	once, enter mean of SAMPLE1, then ENTER
4. Input standard deviation	enter standard devation of SAMPLE1, then ENTER
5. Input sample size	enter sample size of SAMPLE1, then ENTER
6. Input mean of SAMPLE	enter mean of SAMPLE2, then ENTER
7. Input standard deviation	enter standard devation of SAMPLE2, then ENTER
8. Input sample size	enter sample size of SAMPLE2, then ENTER
9. Select test	Using arrow keys, select desired test, then ENTER
10. Enter no for Pooled	use left arrow key (if necessary) to move cursor to No, then ENTER
11. Calculate P–value	once, ENTER
12. Scroll down to find more calculations	Press
In this case, the test was Ha: μ1 > μ2; the t statistic is 37.058; the p–value is 0; the df is 38785.95481, etc.