Casio CFX-9970G User Manual page 316

18 - 7
Confidence Interval
The following shows the meaning of parameter data specification items that are
different from list data specification.
Example
.................... population standard deviation of sample 1 ( %
%
1
.................... population standard deviation of sample 2 ( %
%
2
List1 ................ list whose contents you want to use as sample 1 data
List2 ................ list whose contents you want to use as sample 2 data
Freq1 .............. frequency of sample 1
Freq2 .............. frequency of sample 2
Execute .......... executes a calculation
o
.................... sample 1 mean
1
n
.................... sample 1 size (positive integer)
1
o
.................... sample 2 mean
2
n
.................... sample 2 size (positive integer)
2
To calculate the 2-Sample
input
For this example, we will obtain the 2-Sample
data 1 = {55, 54, 51, 55, 53, 53, 54, 53} and data 2 = {55.5, 52.3,
51.8, 57.2, 56.5} when C-Level = 0.95 (95% confidence level),
= 15.5, and %
%
1
1(List)c
a.jfw
bf.fw
bd.fw
1(List1)c2(List2)c1(1)c
1(1)c1(CALC)
Left ................. interval lower limit (left edge)
Right ............... interval upper limit (right edge)
o
.................... sample 1 mean
1
o
.................... sample 2 mean
2
x
............... sample 1 standard deviation
%
n
1 -1
x
............... sample 2 standard deviation
%
n
2 -1
n
.................... sample 1 size
1
n
.................... sample 2 size
2
Z
Interval when two lists of data are
= 13.5.
2
> 0)
1
> 0)
2
Z
Interval for the
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