Difference between revisions of "ZProportion2Test Command"

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;ZProportion2Test[<Sample Proportion 1>,<Sample Size 1>,<Sample Proportion 2>,<Sample Size 2>,<Tail>]

Revision as of 10:53, 15 August 2012


ZProportion2Test[<Sample Proportion 1>,<Sample Size 1>,<Sample Proportion 2>,<Sample Size 2>,<Tail>]
Performs a test of the difference between two population means using the given sample statistics. Tail has possible values "<", ">" , "≠". These specify the alternative hypothesis as follows.
"<" = difference in population proportions < 0
">" = difference in population proportions > 0
"≠" = difference in population proportions ≠ 0
Results are returned in list form as {P value, Z test statistic}.
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