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296
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.
o1 .................... sample 1 mean
n1 .................... sample 1 size (positive integer)
o2 .................... sample 2 mean
n2 .................... 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)
o1 .................... sample 1 mean
o2 .................... sample 2 mean
x1
σ
n-1 ............... sample 1 standard deviation
x2
σ
n-1 ............... sample 2 standard deviation
n1 .................... sample 1 size
n2 .................... sample 2 size
18 - 7 Confidence Interval
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