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Right-tailed test

we want to know if the difference in the population proportions $ p_1-p_2$ is significantly greater than 0 .

classic method: If the $ z$ -statistic (cell G22) is greater than $ +z_{\alpha/2}$ (cell G21), reject the null hypothesis. Otherwise, accept it (the appropriate conclusion appears in cell G24).



gene quinn 2006-12-04