- Press STAT.
- Press the right arrow key to scroll over to the TESTS menu.
- Press the down arrow key to scroll down until 2-PropZTest is highlighted.
- Input the number of “successes” for the first group next to the x1. Remember: this must be a whole number.
- Input the sample size for the first group next to the n1.
- Input the number of “successes” for the second group next to the x2.
- Input the sample size for the second group next to the n2.
- Select the alternate hypothesis.
- Highlight Calculate and press ENTER.
- The calculator should now display the results of the hypothesis test.
Old Operating System Manual