i'm doing a Ttest on a dataset with the following hypothesis. H0: mu_inc95(senior)<=mu_inc95(new) H1: mu_inc95(senior)>mu_inc95(new) was the senior mean income in 1995 higher then the new's? my code is this: `proc ttest data=c2 ; var inc95; class seniority; run;` 0=new 1=senior and i get the following results: http://srv1.jpg.co.il/2/52c2c92d39500.png i can see that for the F test for VAR, the p.v. is 0.5320 so they are equal. but the p.v. for the Ttest is 0.66 which means i approve the null hypothesis. but it is obviously wrong. am i looking on the p.v. wrong?
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