/** Two-Sample t Confidence Intervals **/

/*****************************************************************
Data are found in sasdata.blades2.
This first bit of code gives the relevant confidence intervals, 
but a lot more as well:
*****************************************************************/
proc ttest data=sasdata.blades2 alpha=.1;
 class manufacturer;
 var y;
run;
/*****************************************************************
The output from following modified code gives more focused output:
*****************************************************************/
ods graphics off;
ods exclude all;
proc ttest data=sasdata.blades2 alpha=.1;
 class manufacturer;
 var y;
 ods output ConfLimits=outLimits;
run;
ods exclude none;
ods graphics; 
proc print data=outLimits noobs; 
 var Class Mean StdDev Method LowerCLMean UpperCLMean;
run;