Solution 34691: Correcting a Domain Error When Calculating a 1-Prop Z-Interval on the TI-84 Plus C Silver Edition Graphing Calculator.
When trying to calculate a 1-Prop Z-Interval, I get a domain error on my TI-84 Plus C Silver Edition graphing calculator?
When calculating a 1-Prop Z Interval and the number of trials and the number of successes are given it is important to input the trials in n and the number of successes in x if this done incorrectly the calculator will display error domain.
Please Note: The successes number should not be larger than the number of trials.
Example: The Confidence interval for a population proportion is .95, with 1682 successes out of 2589 trials.
1) Press [STAT] [►] [►].
2) Select [A:1-PropZInt...].
3) Press     [▼].
4) Press     [▼].
5) Press [.]   [▼].
6) Select [CALCULATE].
7) Press [ENTER].
Please see the TI-84 Plus C Silver Edition guidebook for additional information.