To compute standard error, confidence limits for the mean, and the
Student's t-test, you must use the default value of the VARDEF=
option, which is DF. To compute skewness or kurtosis, you must use
VARDEF=N or VARDEF=DF.
PROC MEANS Statement1015
Tip
Use CLM or both LCLM and UCLM to compute a two-sided
confidence limit ...
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