CASCALC89 COMMAND · NOT ON THE TI-89
zInterval_1Prop
Computes a z confidence interval for a population proportion. The results are stored in stat variables such as stat.CLower.
Syntax
zInterval_1Prop x,n[,CLevel]
- Group
- Statistics
- Arguments
- Takes the number of successes x, the sample size n and an optional confidence level.
- Availability
- Included
- Origin
- TI-Nspire CAS style command; the TI-89 Titanium handheld does not have it
Example
| Input | Result |
|---|---|
| zInterval_1Prop 12,40,0.95:stat.CLower | 0.157987117455 |
Typing zInterval_1Prop 12,40,0.95:stat.CLower on the home screen and pressing ENTER returns 0.157987117455.
Related commands
- zInterval_2PropComputes a z confidence interval for the difference of two proportions.
- zInterval_2SampComputes a z confidence interval for the difference of two population means with known σ.
- zTestPerforms a one sample z test on a population mean when σ is known.
- zTest_1PropPerforms a one proportion z test.
- zTest_2PropPerforms a two proportion z test that compares two population proportions.
- zTest_2SampPerforms a two sample z test on the difference of two population means with known σ.
- χ²2wayPerforms a χ² test for association on a two way table of observed counts; it is the same command as chi22way.
- χ²GOFPerforms a χ² goodness of fit test that compares observed counts with expected counts; it is the same command as chi2GOF.