# Difference between revisions of "TTest Command"

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− | <noinclude>{{Manual Page|version=5.0}}</noinclude> | + | <noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|statistics}} |

− | {{command|statistics}} | + | ;TTest( <List of Sample Data>, <Hypothesized Mean>, <Tail> ) |

− | ;TTest | ||

: Performs a one-sample t-test of a population mean using the given list of sample data. ''Hypothesized Mean'' is the population mean assumed in the null hypothesis. ''Tail'' has possible values "<", ">" , "≠". These specify the alternative hypothesis as follows. | : Performs a one-sample t-test of a population mean using the given list of sample data. ''Hypothesized Mean'' is the population mean assumed in the null hypothesis. ''Tail'' has possible values "<", ">" , "≠". These specify the alternative hypothesis as follows. | ||

:: "<" = population mean < ''Hypothesized Mean'' | :: "<" = population mean < ''Hypothesized Mean'' | ||

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:: "≠" = population mean ≠ ''Hypothesized Mean'' | :: "≠" = population mean ≠ ''Hypothesized Mean'' | ||

: Results are returned in list form as ''{Probability value, t-test statistic}''. | : Results are returned in list form as ''{Probability value, t-test statistic}''. | ||

− | :{{example|1= | + | :{{example|1=<code><nowiki>TTest({1, 2, 3, 4, 5}, 3, "<")</nowiki></code> yields ''{0.5, 0}''.}} |

− | ;TTest | + | ;TTest( <Sample Mean>, <Sample Standard Deviation>, <Sample Size>, <Hypothesized Mean>, <Tail> ) |

: Performs a one-sample t-test of a population mean using the given sample statistics. ''Hypothesized Mean'' and ''Tail'' are defined as above. Results are returned in list form as ''{Probability value, t-test statistic}''. | : Performs a one-sample t-test of a population mean using the given sample statistics. ''Hypothesized Mean'' and ''Tail'' are defined as above. Results are returned in list form as ''{Probability value, t-test statistic}''. | ||

− | :{{example|1= | + | :{{example|1=<code><nowiki>TTest(4, 1, 12, 4, "≠")</nowiki></code> yields ''{1, 0}''.}} |

## Latest revision as of 10:25, 12 October 2017

- TTest( <List of Sample Data>, <Hypothesized Mean>, <Tail> )
- Performs a one-sample t-test of a population mean using the given list of sample data.
*Hypothesized Mean*is the population mean assumed in the null hypothesis.*Tail*has possible values "<", ">" , "≠". These specify the alternative hypothesis as follows.- "<" = population mean <
*Hypothesized Mean* - ">" = population mean >
*Hypothesized Mean* - "≠" = population mean ≠
*Hypothesized Mean*

- "<" = population mean <
- Results are returned in list form as
*{Probability value, t-test statistic}*. **Example:**`TTest({1, 2, 3, 4, 5}, 3, "<")`

yields*{0.5, 0}*.

- TTest( <Sample Mean>, <Sample Standard Deviation>, <Sample Size>, <Hypothesized Mean>, <Tail> )
- Performs a one-sample t-test of a population mean using the given sample statistics.
*Hypothesized Mean*and*Tail*are defined as above. Results are returned in list form as*{Probability value, t-test statistic}*. **Example:**`TTest(4, 1, 12, 4, "≠")`

yields*{1, 0}*.