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/*create new data set -- use input statement to name variables,
cards statement to begin entering data*/
data ttest;
input x1 x2;
cards;
3 5
2 6
5 7
1 9
2 10
1 15
2 6
3 27
4 37
3 71
;
run;
/*One sample ttest*/
proc ttest data=ttest;
var x1 x2;
run;
/*One sample ttest with informed Null
hypothesis*/
proc ttest data=ttest h0=20;
var x2;
run;
/*Paired sample ttest*/
proc ttest data=ttest;
paired x1*x2;
run;
/*rearrange last data set with group variable*/
data ttest2;
input x12 group;
cards;
3 0
2 0
5 0
1 0
2 0
1 0
2 0
3 0
4 0
3 0
5 1
6 1
7 1
9 1
10 1
15 1
6 1
27 1
37 1
71 1
;
run;
/*Satterthwaite and Pooled sample Ttest for two sample comparisons*/
proc ttest data=ttest2;
class group;
var x12;
run;
/*Pooled sample ttest is equal to 2 group
ANOVA result -- compare with above*/
proc glm data=ttest2;
model x12=group/solution ;
run;
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