Casio ALGEBRA FX 2.0 PLUS - Manual (Page 45)

20010101
o
1
................................. mean of sample 1
x
1
σ
n -1
............................ standard deviation ( x
1
σ
n -1
> 0) of sample 1
n
1
................................. size (positive integer) of sample 1
o
2
................................. mean of sample 2
x
2
σ
n -1
............................ standard deviation ( x
2
σ
n -1
> 0) of sample 2
n
2
................................. size (positive integer) of sample 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
o
1
................................. mean of sample 1
o
2
................................. mean of sample 2
x
1
σ
n -1
............................ standard deviation of sample 1
x
2
σ
n -1
............................ standard deviation of sample 2
x
p
σ
n -1
............................ pooled sample standard deviation
(Displayed only when Pooled: On setting.)
n
1
................................. size of sample 1
n
2
................................. size of sample 2
1-3-11
Confidence Interval (INTR)