CASTI-89 TITANIUM (STATS/LIST EDITOR APP) · CALC89
zTest
Performs a one sample z test on a population mean when σ is known. The results are stored in stat variables such as stat.PVal.
Syntax
zTest μ0,σ,List[,Freq[,Hypoth]]
- Group
- Statistics
- Arguments
- Takes the hypothesized mean μ0, σ and a data list with optional frequency and hypothesis, or the summary statistics as in the example.
- Availability
- Included
- Origin
- On the TI-89 Titanium this command comes with the preinstalled Stats/List Editor app
Example
| Input | Result |
|---|---|
| zTest 50,1.8,48.6,9,0:stat.PVal | 0.0196306572573 |
Typing zTest 50,1.8,48.6,9,0:stat.PVal on the home screen and pressing ENTER returns 0.0196306572573.
Related commands
- 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.
- ANOVAPerforms a one way analysis of variance to compare the means of several groups.
- ANOVA2wayPerforms a two way analysis of variance on several lists of data.
- chi22wayPerforms a χ² test for association on a two way table of observed counts.