Application Guide

76 Alphabetical Listing
FTest_2Samp
Catalog >
FTest_2Samp List1,List2[,Freq1[,Freq2
[,Hypoth]]]
FTest_2Samp List1,List2[,Freq1[,Freq2
[,Hypoth]]]
(Data list input)
FTest_2Samp sx1,n1,sx2,n2[,Hypoth]
FTest_2Samp sx1,n1,sx2,n2[,Hypoth]
(Summary stats input)
Performs a two-sample Ftest. A summary
of results is stored in the stat.results
variable. (See page 177.)
For H
a
: σ1 > σ2, set Hypoth>0
For H
a
: σ1 ≠ σ2 (default), set Hypoth =0
For H
a
: σ1 < σ2, set Hypoth<0
For information on the effect of empty
elements in a list, see Empty (Void)
Elements, page 236.
Output variable Description
stat.F Calculated F statistic for the data sequence
stat.PVal Smallest level of significance at which the null hypothesis can be rejected
stat.dfNumer numerator degrees of freedom = n1-1
stat.dfDenom denominator degrees of freedom = n2-1
stat.sx1, stat.sx2
Sample standard deviations of the data sequences in List1 and List2
stat.x1_bar
stat.x2_bar
Sample means of the data sequences in List1 andList2
stat.n1, stat.n2 Size of the samples
Func
Catalog >
Func
Block
EndFunc
Template for creating a user-defined
function.
Define a piecewise function: