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;
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
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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