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MaryA_Marion
Lapis Lazuli | Level 10

I need to know how the following statistics are calculated: std dev under Ho, Mean Score and t approximation.

See code below. Does SAS test for size of samples and use approximation when appropriate? I question the output. 

 

data one;
input sample resp;
1 1
1 3
1 2
1 3
1 5
2 4
2 7
2 6
2 8
2 6
;
proc NPAR1WAY data=one wilcoxon;
        title "Nonparametric test to compare medians";
        class sample;
        var resp;
        exact wilcoxon;
   run;

 

1 ACCEPTED SOLUTION

Accepted Solutions
Rick_SAS
SAS Super FREQ

Since your example has tied values, please read how PROC NPAR1WAY treats tied values. That is a common source of error for people who are trying to reproduce the output.

 

The documentation includes

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1 REPLY 1
Rick_SAS
SAS Super FREQ

Since your example has tied values, please read how PROC NPAR1WAY treats tied values. That is a common source of error for people who are trying to reproduce the output.

 

The documentation includes

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