# Difference between revisions of "ZMeanTest Command"

From GeoGebra Manual

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

− | ;ZMeanTest | + | ;ZMeanTest( <List of Sample Data>, <σ>, <Hypothesized Mean>, <Tail> ) |

: Performs a one sample [[w:Z-test|Z test]] of a population mean using the given list of sample data and the population standard deviation. ''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 [[w:Z-test|Z test]] of a population mean using the given list of sample data and the population standard deviation. ''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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: Results are returned in list form as {Probability value, Z test statistic}. | : Results are returned in list form as {Probability value, Z test statistic}. | ||

− | ;ZMeanTest | + | ;ZMeanTest( <Sample Mean>, <σ>, <Sample Size>, <Hypothesized Mean>, <Tail> ) |

: Performs a ''one sample Z test'' of a population mean using the given sample statistics and the population standard deviation. ''Hypothesized Mean'' and ''Tail'' are defined as above. | : Performs a ''one sample Z test'' of a population mean using the given sample statistics and the population standard deviation. ''Hypothesized Mean'' and ''Tail'' are defined as above. | ||

:Results are returned in list form as {Probability value, Z test statistic}. | :Results are returned in list form as {Probability value, Z test statistic}. |

## Latest revision as of 17:16, 7 October 2017

- ZMeanTest( <List of Sample Data>, <σ>, <Hypothesized Mean>, <Tail> )
- Performs a one sample Z test of a population mean using the given list of sample data and the population standard deviation.
*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, Z test statistic}.

- ZMeanTest( <Sample Mean>, <σ>, <Sample Size>, <Hypothesized Mean>, <Tail> )
- Performs a
*one sample Z test*of a population mean using the given sample statistics and the population standard deviation.*Hypothesized Mean*and*Tail*are defined as above. - Results are returned in list form as {Probability value, Z test statistic}.