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56 Alphabetical Listing
frequency()
Catalog >
Elements of List1 that cannot be “placed in
a bin” are ignored. Empty (void) elements
are also ignored. For more information on
empty elements, see page 196.
Within the Lists & Spreadsheet application,
you can use a range of cells in place of both
arguments.
Note: See also countIf(), page 29.
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 Ftest. A summary
of results is stored in the stat.results
variable. (See page 145.)
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 196.
Output variable Description
stat.F CalculatedF statistic for the data sequence
stat.PVal Smallest level of significance at whichthe 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 inList1 and List2
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