2、配对试验资料的检验(教材【例55】) DaTA B INPUT D X1 2 d=x1-x2 CARDS: 137.837.9 238.239.0 3380389 437.6384 537.937.9 638.139.0 738.239.5 837.538.6 938.5388 1037.939.0 PROC MEANS MEAN STDERR T PRT VaR d RUN2、配对试验资料的t检验（教材【例5.5】） DATA B; INPUT ID x1 x2; d=x1-x2; CARDS; 1 37.8 37.9 2 38.2 39.0 3 38.0 38.9 4 37.6 38.4 5 37.9 37.9 6 38.1 39.0 7 38.2 39.5 8 37.5 38.6 9 38.5 38.8 10 37.9 39.0 ; PROC MEANS MEAN STDERR T PRT; VAR d; RUN;