Casio fx-9860G AU PLUS, Руководство пользователя

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20050401
The following confidence interval applies when pooling is not in effect.
α
is the level of
significance. The value 100 (1 –
α
) % is the confidence level.
Left =
( o
1
– o
2
)–
t
df
α
2
Right = (
o
1
–
o
2
)+ t
df
α
2
+
n
1
x
1
n
–1
2
σ
n
2
x
2 n –1
2
σ
+
n
1
x
1 n –1
2
σ
n
2
x
2 n –1
2
σ
C
=
df =
1
C
2
n
1
–1
+
(1– C )
2
n
2
–1
+
n
1
x
1
n
–1
2
σ
n
1
x
1 n –1
2
σ
n
2
x
2 n –1
2
σ
Perform the following key operations from the statistical data list.
4 (INTR)
2
(t)
2
(2-S)
The following shows the meaning of each item in the case of list data specification.
Data ............................ data type
C-Level ........................ confidence level (0
<
C-Level < 1)
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)
Pooled ......................... pooling On (in effect) or Off (not in effect)
Save Res .................... list for storage of calculation results (None or List 1 to 26)
Execute ....................... executes a calculation
The following shows the meaning of parameter data specification items that are different
from list data specification.
6-6-10
Confidence Interval