jsjn3.sas

those are some program of the sas system .and very useful when doing the statistic working .

title'假设检验二';
data ex;
input orgenic$ number @@;
cards;
a 1.64 a 1.04 a 1.46 a 0.88 a 1.30 a 0.84 a 1.39 a 0.99 a 1.43
b 1.60 b 0.62 b 1.49 b 0.74 b 1.24 b 0.65 b 1.51 b 0.84 b 1.50
;run;
proc ttest;
class orgenic;
var  number;
run;