Difference between revisions of "ZMean2Test Command"
From GeoGebra Manual
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<noinclude>{{Manual Page|version=4.2}}</noinclude> | <noinclude>{{Manual Page|version=4.2}}</noinclude> | ||
{{command|statistics}} | {{command|statistics}} | ||
− | ;ZMean2Test[ <List of Sample Data 1>, < | + | ;ZMean2Test[ <List of Sample Data 1>, <σ1>, <List of Sample Data 2>, <σ2>, <Tail> ] |
:Performs a Z test of the difference between two population means using the given lists of sample data and the population standard deviations. Tail has possible values "<", ">" , "≠" that determine the following alternative hypotheses: | :Performs a Z test of the difference between two population means using the given lists of sample data and the population standard deviations. Tail has possible values "<", ">" , "≠" that determine the following alternative hypotheses: | ||
:: "<" = difference in population means < 0 | :: "<" = difference in population means < 0 | ||
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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}. | ||
− | ;ZMean2Test[ <Sample Mean 1 >, < | + | ;ZMean2Test[ <Sample Mean 1 >, <σ1>, <Sample Size 1>, <Sample Mean 2 >, <σ2>, <Sample Size 2>, <Tail> ] |
:Performs a Z test of the difference between two population means using the given sample statistics and population standard deviations. ''Tail'' is defined as above. | :Performs a Z test of the difference between two population means using the given sample statistics and population standard deviations. ''Tail'' is defined as above. |
Revision as of 10:03, 15 March 2013
- ZMean2Test[ <List of Sample Data 1>, <σ1>, <List of Sample Data 2>, <σ2>, <Tail> ]
- Performs a Z test of the difference between two population means using the given lists of sample data and the population standard deviations. Tail has possible values "<", ">" , "≠" that determine the following alternative hypotheses:
- "<" = difference in population means < 0
- ">" = difference in population means > 0
- "≠" = difference in population means ≠ 0
Results are returned in list form as {Probability value, Z test statistic}.
- ZMean2Test[ <Sample Mean 1 >, <σ1>, <Sample Size 1>, <Sample Mean 2 >, <σ2>, <Sample Size 2>, <Tail> ]
- Performs a Z test of the difference between two population means using the given sample statistics and population standard deviations. Tail is defined as above.