TI Instructions: A Statistical Investigation using Software
- In the TESTS menu, select 2-PropZTest...
- In the menu that appears, x1 and x2 are the numbers of successes and n1 and n2 are the sample sizes. Enter these values.
- Below these values is a line which allows the selection of an alternative hypothesis.
p1: ≠ p2, < p2, > p2. Choose the appropriate comparison of p2 to p1 as appropriate.
- Highlight the word Calculate and press Enter.
- Scroll down to find the sample proportions, test statistic, and P-value.