Casio CFX-9850GB PLUS, User Manual

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20070201
6-5-20
Tests
k
2-Sample
F
Test
2-Sample
F
Test tests the hypothesis for the ratio of sample variances. The
F
Test is applied
to the
F
distribution.
Perform the following key operations from the statistical data list.
3
(TEST)
4
(F)
The following is the meaning of each item in the case of list data specifi cation.
Data .............................. data type
σ
1
................................. population standard deviation test conditions (“
G σ
2
”
specifi es two-tail test, “<
σ
2
” specifi es one-tail test where
sample 1 is smaller than sample 2, “>
σ
2
” specifi es one-tail
test where sample 1 is greater than sample 2.)
List(1) ........................... list whose contents you want to use as data of sample 1
(List 1 to 26)
List(2) ........................... list whose contents you want to use as data of sample 2
(List 1 to 26)
Freq(1).......................... frequency of sample 1 (1 or List 1 to 26)
Freq(2).......................... frequency of sample 2 (1 or List 1 to 26)
Save Res ...................... list for storage of calculation results (None or List 1 to 26)
Execute ........................ executes a calculation or draws a graph
The following shows the meaning of parameter data specifi cation items that are different
from list data specifi cation.
x
1
σ
n
-1
............................ standard deviation (
x
1
σ
n
-1
> 0) of sample 1
n
1
................................. size (positive integer) of sample 1
x
2
σ
n
-1
............................ standard deviation (
x
2
σ
n
-1
> 0) of sample 2
n
2
................................. size (positive integer) of sample 2
F
=
x
1 n –1
2
σ
x
2
n
–1
2
σ
F
=
x
1 n –1
2
σ
x
2
n
–1
2
σ