is a z score a sign test can a statistic be reported in stata when using a lsas or stata does the z score change why is stata and stata used to calculate z score does a sas statistic show a z score or z do sas and stata use same data does stata report score on median what is z score in sas what is the z score in the statistics of ucla? does a stata test use a sign does z score come in sas or stata what test to use for variance analysis in sas what is the z score used in stata what is the difference between stata and sas what does the z score of stata mean what statistic does wilcoxon signa test how to test for skewed median do sas statistic use variance what is the difference between z score and stata stat when is the z score reported in stata