Casio fx-9750G PLUS - Manual (Page 325)

297
σ
1
.................... population standard deviation of sample 1 ( σ
1
> 0)
σ
2
.................... population standard deviation of sample 2 ( σ
2
> 0)
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
The following shows the meaning of parameter data specification items that are
different from list data specification.
o
1
.................... sample 1 mean
n
1
.................... sample 1 size (positive integer)
o
2
.................... sample 2 mean
n
2
.................... sample 2 size (positive integer)
Example To calculate the 2-Sample Z Interval when two lists of data are
input
For this example, we will obtain the 2-Sample Z Interval for the
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),
σ
1
= 15.5, and σ
2
= 13.5.
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
1
.................... sample 1 mean
o
2
.................... sample 2 mean
x
1
σ
n -1
............... sample 1 standard deviation
x
2
σ
n -1
............... sample 2 standard deviation
n
1
.................... sample 1 size
n
2
.................... sample 2 size
Confidence Interval
18 - 7