20010101
k
k
k
k
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.
F
=
x
1
n
–1
2
σ
x
2
n
–1
2
σ
Perform the following key operations from the statistical data list.
3
(TEST)
e
(F)
The following is the meaning of each item in the case of list data specification.
Data ............................ data type
σ
1
................................. population standard deviation test conditions (“
G
σ
2
”
specifies two-tail test, “<
σ
2
” specifies one-tail test where
sample 1 is smaller than sample 2, “>
σ
2
” specifies 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 20)
List(2) .......................... list whose contents you want to use as data of sample 2
(List 1 to 20)
Freq(1) ........................ frequency of sample 1 (1 or List 1 to 20)
Freq(2) ........................ frequency of sample 2 (1 or List 1 to 20)
Save Res ..................... list for storage of calculation results (None or List 1 to 20)
Execute ....................... executes a calculation or draws a graph
The following shows the meaning of parameter data specification items that are different
from list data specification.
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
1-2-20
Tests (TEST)
20011101
