/****************************************************************/
/* S A S S A M P L E L I B R A R Y */
/* */
/* NAME: pwrex03 */
/* TITLE: Documentation Example 3 for PROC POWER */
/* (Simple AB/BA Crossover Designs) */
/* PRODUCT: STAT */
/* SYSTEM: ALL */
/* KEYS: power */
/* sample size */
/* power analysis */
/* graphs */
/* PROCS: POWER */
/* DATA: */
/* */
/* SUPPORT: John Castelloe */
/* REF: */
/* MISC: */
/****************************************************************/
ods graphics on;
proc power;
pairedmeans test=diff
pairedmeans = (330 310)
pairedstddevs = (40 55)
corr = 0.3
sides = 1 2
alpha = 0.01
npairs = 100
power = .;
plot x=n min=50 max=200;
run;
ods graphics off;
proc power;
pairedmeans test=equiv_add
lower = -35
upper = 35
pairedmeans = (330 310)
pairedstddevs = (40 55)
corr = 0.3
alpha = 0.01
npairs = 100
power = .;
run;