110404     TTEST  Version: October 1979
 
Submitted by: Rudolph H. de Jong, Tufts University School of Medicine
 
Operating System: RSX-11 V3.2, RT-11 V2  Source Language: FORTRAN IV,
FORTRAN IV-PLUS  Memory Required: less than 12K  Keywords: Statistics
 
Abstract: TTEST is a FORTRAN program that computes the
t-statistics to evaluate the difference between two
unpaired means. The user need only provide the mean,
standard deviation (or standard error) and sample size
of each of the two sample populations. In addition to
the t-value, TTEST lists degrees of freedom and the
corresponding 95% one-tailed and two-tailed critical
t-values. Advantages of TTEST are minimal input
requirements and informative output that does away with
table lookup.
 
Media (Service Charge Code): Write-Up and Listing (DA), One RX01
Diskette (KA)  Format: FILES-11 or RT-11, 600' Magnetic Tape (MA)
Format: RSX/ANSI or RT-11 MEDIA FORMAT MUST BE SPECIFIED ON ORDER FORM