HOW TO PERFORM HYPOTHESIS TESTING ON TWO SAMPLE PROPORTIONS WITH TI83 CALCULATOR

Steps	Key Sequence	Screens
1. Set up Stats Tests	STAT
	twice
	6 (for 2–PropZTest...)
2. Input number of successes in SAMPLE1, x1	enter value for x1, then ENTER
3. Input number of observations in SAMPLE1, n1	enter value for n1, then ENTER
4. Input number of successes in SAMPLE2, x2	enter value for x2, then ENTER
5. Input number of observations in SAMPLE2, n2	enter value for n2, then ENTER
6. Select appropriate test	use right and left arrow keys to move cursor to appropriate test, then ENTER
7. Calculate P–value	once, then ENTER
8. Scroll down to find more calculations	Press
In this case, the test was Ha: p1 < p1; the two–sample z statistic is –2.47; the p–value is 0.00675; etc.
9. Draw the test	repeat steps 1 through 6 (the data should already be stored!), then once, then ENTER