Casio fx-9750G PLUS - Manual (Page 331)

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Example To calculate the 2-Sample t Interval when two lists of data are
input
For this example, we will obtain the 2-Sample t Interval for data 1
= {55, 54, 51, 55, 53, 53, 54, 53} and data 2 = {55.5, 52.3, 51.8, 57.2,
56.5} without pooling when C-Level = 0.95.
1 (List)c
a.jfw
1 (List1)c2(List2)c1(1)c
1 (1)c2(Off)c1(CALC)
Left ................. interval lower limit (left edge)
Right ............... interval upper limit (right edge)
df .................... degrees of freedom
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
The following item is also shown when Pooled = On.
x
p
σ
n -1
............... pooled sample standard deviation
Confidence Interval
18 - 7