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.
x1
σ
n-1 ............................ standard deviation ( x1
σ
n-1 > 0) of sample 1
n1 ................................. size (positive integer) of sample 1
x2
σ
n-1 ............................ standard deviation ( x2
σ
n-1 > 0) of sample 2
n2 ................................. 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
