CASTI-89 TITANIUM (STATS/LIST EDITOR APP) · CALC89
tTest
Performs a one sample t test on a population mean when σ is unknown. The results are stored in stat variables such as stat.PVal.
Syntax
tTest μ0,List[,Freq[,Hypoth]]
- Group
- Statistics
- Arguments
- Takes the hypothesized mean μ0 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 |
|---|---|
| tTest 50,48.6,1.8,9,0:stat.PVal | 0.04791172613 |
Typing tTest 50,48.6,1.8,9,0:stat.PVal on the home screen and pressing ENTER returns 0.04791172613.
Related commands
- tTest_2SampPerforms a two sample t test on the difference of two population means.
- TwoVarComputes two variable statistics of paired data, such as means, sums and the correlation.
- varPop(Returns the population variance of a list.
- varSamp(Returns the sample variance of a list.
- zIntervalComputes a z confidence interval for a population mean when σ is known.
- zInterval_1PropComputes a z confidence interval for a population proportion.
- 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.