ZProportion2Test Command
- ZProportion2Test( <Sample Proportion 1>, <Sample Size 1>, <Sample Proportion 2>, <Sample Size 2>, <Tail> )
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Performs a test of the difference between two population proportions 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 \{Probability value, Z test statistic}.