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***ALERT NOTE***
SAS Note: SN-003202
Product: STAT
Component: TTEST
Title:
PROC TTEST incorrectly computes many weighted statistics
Keywords:
TTEST WEIGHT STANDARD DEVIATION CL UPPER LOWER INCORRSTAT STATISTICS
INCORROUT ERROR
PROC TTEST incorrectly computes the standard deviation, upper and
lower confidence limits for the standard deviation, upper and lower
confidence limits for the mean, standard error, t-statistic and p-value
of the t-statistic when there is a WEIGHT statement.
PROC MEANS, PROC GLM or PROC MIXED can be used to correctly calculate
these weighted statistics.
Reported Releases:
+------------REPORTED------------+ +------FIXED-----+
System Version Level Version Level
AIX/R 7 P1 8 8.2
AIX/R 8 1M0 8 8.2
AIX/R 8 M0 8 8.2
CMS 7 P1 8 8.2
CMS 8 1M0 8 8.2
CMS 8 M0 8 8.2
DigitUnx 7 P1 8 8.2
DigitUnx 8 1M0 8 8.2
DigitUnx 8 M0 8 8.2
HP800 7 P1 8 8.2
HP800 8 1M0 8 8.2
HP800 8 M0 8 8.2
IABI 8 1M0 8 8.2
IABI 8 M0 8 8.2
MIPS ABI 8 1M0 8 8.2
MIPS ABI 8 M0 8 8.2
MVS 7 P1 8 8.2
MVS 8 1M0 8 8.2
MVS 8 M0 8 8.2
OS/2 7 P1 8 8.2
OS/2 8 1M0 8 8.2
OS/2 8 M0 8 8.2
Solaris 7 P1 8 8.2
Solaris 8 1M0 8 8.2
Solaris 8 M0 8 8.2
VMS 7 P1 8 8.2
VMS 8 1M0 8 8.2
VMS 8 M0 8 8.2
VMS/AXP 7 P1 8 8.2
VMS/AXP 8 1M0 8 8.2
VMS/AXP 8 M0 8 8.2
WIN/NT 7 P1 8 8.2
WIN/NT 8 1M0 8 8.2
WIN/NT 8 M0 8 8.2
Win2000 8 1M0 8 8.2
Win2000 8 M0 8 8.2
Win95 7 P1 8 8.2
Win95 8 1M0 8 8.2
Win95 8 M0 8 8.2
Win98 7 P1 8 8.2
Win98 8 1M0 8 8.2
Win98 8 M0 8 8.2
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