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This code would give me 2-sided exact 95% confidence intervals using Clopper-Pearson and Blyth-Still-Casella. Is there an option in Proc-StatXact that would allow a 1-sided 95% confidence interval?

April 26, 2017code confidence exact intervals option

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This code would give me 2-sided exact 95% confidence intervals using Clopper-Pearson and Blyth-Still-Casella. Is there an option in Proc-StatXact that would allow a 1-sided 95% confidence interval?

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A. Proc Binomial produces a two-sided confidence interval. If you need a 95% one-sided confidence interval, you will have to specify the confidence level as 90% and then take either the lower limit or upper limit as one end of one-sided 95% confidence interval.