在线求助，means过程中如果求置信区间？

shiyiming

我的程序是
proc means data=abc /*alpha=0.05*/;
var ratio;
alpha=0.05;
outpput out=drd;
run;
结果还是没有置信区间。哪位大虾出出注意，多谢啦！！！！ <!-- s:D --><img src="{SMILIES_PATH}/icon_biggrin.gif" alt=":D" title="Very Happy" /><!-- s:D -->

shiyiming

proc means data=abc alpha=0.05 clm;
var ratio;
run; <!-- s:P --><img src="{SMILIES_PATH}/icon_razz.gif" alt=":P" title="Razz" /><!-- s:P -->