294
k
k
k
k
k
Z
Confidence Interval
You can use the following menu to select from the different types of
Z
confidence
interval.
• {
1-S
}
/
{
2-S
}
/
{
1-P
}
/
{
2-P
} ... {1-Sample}/{2-Sample}/{1-Prop}/{2-Prop}
Z
Interval
u
u
u
u
u
1-Sample
Z
Interval
1-Sample
Z
Interval
calculates the confidence interval when standard deviation is
known.
Z
Interval is applied to normal distribution.
The following is the confidence interval.
However,
)
is not the confidence level itself.
When the confidence level is 95%, for example, inputting 0.95 produces 1 – 0.95 =
0.05 =
)
.
Perform the following key operation from the statistical data list.
4
(INTR)
1
(Z)
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)
%
..................... population standard deviation (
%
> 0)
List .................. list whose contents you want to use as sample data
Freq ................ sample frequency
Execute .......... executes a calculation
The following shows the meaning of parameter data specification items that are
different from list data specification.
o
..................... sample mean
n
..................... sample size (positive integer)
18 - 7
Confidence Interval
Left
=
o
–
Z
)
2
%
n
Right
=
o
+
Z
)
2
%
n
Summary of Contents for CFX-9970G
Page 22: ... CFX 9970G ...
Page 452: ...435 1 2 3 4 5 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 453: ...436 Program for Circle and Tangents No 4 Step Key Operation Display 6 7 8 9 10 ...
Page 454: ...437 11 12 13 14 15 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 455: ...438 16 17 18 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 458: ...441 1 2 3 4 5 Program for Rotating a Figure No 5 Step Key Operation Display ...
