Title stata.com power oneproportion — Power analysis for a one-sample proportion test Syntax Menu Description Options Remarks and examples Stored results Methods and formulas References Also see Syntax

Compute sample size power oneproportion p0 pa, power(numlist) options Compute power power oneproportion p0 pa, n(numlist) options Compute effect size and target proportion power oneproportion p0, n(numlist) power(numlist) options where p0 is the null (hypothesized) proportion or the value of the proportion under the null hypothesis, and pa is the alternative (target) proportion or the value of the proportion under the alternative hypothesis. p0 and pa may each be specified either as one number or as a list of values in parentheses (see [U] 11.1.8 numlist). 1 2 power oneproportion — Power analysis for a one-sample proportion test options Description test(test) specify the type of test; default is test(score) Main ∗alpha(numlist) significance level; default is alpha(0.05) ∗power(numlist) power; default is power(0.8) ∗beta(numlist) probability of type II error; default is beta(0.2) ∗n(numlist) sample size; required to compute power or effect size nfractional allow fractional sample size ∗diff(numlist) difference between the alternative proportion and the null proportion, pa − p0; specify instead of the alternative proportion pa critvalues show critical values for the binomial test continuity apply continuity correction to the normal approximation of the discrete distribution direction(upper|lower) direction of the effect for effect-size determination; default is direction(upper), which means that the postulated value of the parameter is larger than the hypothesized value onesided one-sided test; default is two sided parallel treat number lists in starred options as parallel when multiple values per option are specified (do not enumerate all possible combinations of values) Table[ no tabl