data test7_3; /*创建数据集*/
input x y;
d=x-y;
cards;
89 95
78 88
96 95
78 87
74 80
75 83
84 90
79 76
80 83
85 88
;
run;
proc univariate data=test7_3; /*配对样本的符号检验*/
var d;
run;