JMP 11 Online Documentation (English)
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Basic Analysis
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Contingency Analysis
• Two Sample Test for Proportions
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Two Sample Test for Proportions
When both the X and Y variables have two levels, you can request a two-sample test for proportions. This test determines whether the chosen response level has equal proportions across the levels of the X variable.
Description of the Two Sample Test for Proportions Report
Description
Shows the test being performed.
Proportion Difference
Shows the difference in the proportions between the levels of the X variable.
Lower 95%
Shows the lower endpoint of the confidence interval for the difference. Based on the adjusted Wald confidence interval.
Upper 95%
Shows the upper endpoint of the confidence interval for the difference. Based on the adjusted Wald confidence interval.
Adjusted Wald Test
Shows two-tailed and one-tailed tests.
Prob
Shows the p-values for the tests.
Response <variable> category of interest
Select which response level to use in the test.
Related Information
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Example of a Two Sample Test for Proportions