/*-----------------------------------------------------------------
            S A S   S A M P L E   L I B R A R Y                   
                                                                  
      NAME: pwrgs1                                                
     TITLE: Getting Started Example 1 for PROC POWER              
            (Computing Power for a One-Sample t Test)             
   PRODUCT: STAT                                                  
    SYSTEM: ALL                                                   
      KEYS: power analysis                                        
            sample size                                           
            graphs                                                
     PROCS: POWER                                                 
      DATA:                                                       
                                                                  
   SUPPORT: John Castelloe                                        
       REF:                                                       
      MISC:                                                       
-----------------------------------------------------------------*/


proc power;
   onesamplemeans
      mean   = 8
      ntotal = 150
      stddev = 40
      power  = .;
run;

ods graphics on;

proc power;
   onesamplemeans
      mean   = 5 10
      ntotal = 150
      stddev =  30 50
      power  = .;
   plot x=n min=100 max=200;
run;

ods graphics off;