Casio CFX-9970G, Руководство пользователя

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ˆp
1
.................... expected p-value 1
ˆp
2
.................... expected p-value 2
n
1
.................... sample 1 size
n
2
.................... sample 2 size
k k k k k
t Confidence Interval
You can use the following menu to select from two types of
t
confidence interval.
• { 1-S } / { 2-S } ... {1-Sample}/{2-Sample}
t
Interval
u u
u u u
1-Sample t Interval
1-Sample
t
Interval calculates the confidence interval when the mean value of the
sample is known. The
t
Interval is applied to
t
distribution.
The following is the confidence interval.
Left =
o
– t
n
–
1
)
2
Right = o + t
n – 1
)
2
x
n –1
%
n
x
n –1
%
n
Perform the following key operation from the statistical data list.
4 (INTR)
2
(
t
)
1
(1-S)
The following shows the meaning of each item in the case of list data specifica-
tion.
Data ................ data type
C-Level ........... confidence level (0 < C-Level < 1)
List .................. list whose contents you want to use as sample data
Freq ................ sample frequency
Execute .......... execute a calculation
The following shows the meaning of parameter data specification items that are
different from list data specification.
o
..................... sample mean
x
%
n
-1
................ sample standard deviation (
x
%
n
-1
>
0)
n
..................... sample size (positive integer)
Confidence Interval
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