Question

统计软件sas 置信区间怎么计算?

Answer 1

利用Proc Means很容易计算U的90%置信区间.具体程序如下：

data hotdog;

infile datalines dlm=",";

input Calorie@@;

datalines;

186,181,176,149,184,190,158,139,175,148

152,111,141,153,190,157,131,149,135,132

;

run;

proc means data=hotdog alpha=0.1 clm;

run;

程序执行结果如下：