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Question
how to perform paired t-test using Base/SAS & SAS/Stat?
 Question Submitted By :: SAS
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
proc ttest data=a;
paired var1 var2;
run;
 
Is This Answer Correct ?    7 Yes 3 No
Mili
 
Answer
# 2
I tried the above code.But it worked after I gave * or :
between var1 and var2.

proc ttest data=a;
paired var1:var2;
run;
 
Is This Answer Correct ?    4 Yes 2 No
Shwetha
 
 
 

 
 
 
Other SAS Interview Questions
 
  Question Asked @ Answers
 
hi guys ...i have one query... data abc; input s w k g o t a m; cards; 1 2 3 4 5 6 7 8 2 3 4 5 6 7 8 9 ; run; i want the output to be the sorted order(only variables).observations should not be changed..   12
what is SAS ACCESS AND SAS CONNECT ? Give an example and data statements used. TCS 1
Can you calculate the mean, median and mode of the following data set using data step logic? Don't use any function or procedure. data a; input age @@; datalines; 22 32 32 32 43 23 24 56 45 54 28 29 27 26 25 28 30 20 18 37 36 47 46 56 19 20 ; run; I have calculated the mean which i have posted in the answer section. HSBC 6
Name statements that are execution only?   6
i have a dataset with 100000 records. i want 100 records from that dataset and create a dataset.we need to pick the observations random order like 100obs,500obs,1020obs,1890obs,2565obs like that i need 100 obs in random order? how can we create this one? L&T 5
What SAS statements would you code to read an external raw data file to a DATA step? NIIT 8
What are the main differences between sas versions 8.2, 9.0, 9.1?   4
How would you code the criteria to restrict the output to be produced? Accenture 6
if i having variables named a b c d e f ,how to find total of each variable ????give syntax...?? Accenture 6
What is the difference between a PROC step and a DATA step? Accenture 11
What is the purpose of the trailing @? The @@? How would you use them? Accenture 10
Does anybody have SAS Training manual or documentation or can you refer me any book to have better understanding on SAS. I am fresher to SAS tool. (Ready to pay)   3
 
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