Casio Algebra FX 2.0 PLUS User Manual page 45

................................. mean of sample 1
o
1
x σ
............................ standard deviation (
1 n -1
n
................................. size (positive integer) of sample 1
1
................................. mean of sample 2
o
2
x σ
............................ standard deviation (
2 n -1
n
................................. size (positive integer) of sample 2
2
After setting all the parameters, align the cursor with [Execute] and then press the function
key shown below to perform the calculation.
• 1(CALC) ... Performs the calculation.
Calculation Result Output Example
Left .............................. interval lower limit (left edge)
Right ............................ interval upper limit (right edge)
df
................................. degrees of freedom
................................. mean of sample 1
o
1
o ................................. mean of sample 2
2
σ
x
............................ standard deviation of sample 1
n
1 -1
σ
x
............................ standard deviation of sample 2
2 n -1
σ
x
............................ pooled sample standard deviation
p n
-1
n
................................. size of sample 1
1
n
................................. size of sample 2
2
1-3-11
Confidence Interval (INTR)
x σ
1
x σ
2
(Displayed only when Pooled: On setting.)
20010101
> 0) of sample 1
n -1
> 0) of sample 2
n -1