drug placebo 105 160 110 140 108 150 112     136 116 146 112 140 108     150 114 138   148   150       156   152   I have this data that compares blood pressures. The placebo column is patients normal blood pressures and the drug column has their pressures after the drug is administered. I am trying to use a certain PROC statement to determine statistically whether the drug does lower pressures. So after I imported the data into SAS named 'blood' and I am running a simple t-test.   proc ttest data=blood; paired drug*placebo; run;   Does this make sense or should I use proq freq with the chisq option?   ... View more