User's Manual

20070201
¯ x 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
¯ x 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, use c to move the highlighting to “Execute” and then press
the function key shown below to perform the calculation.
• 1 (CALC) ... Performs the calculation.
Calculation Result Output Example
Left ............................... confi dence interval lower limit (left edge)
Right ............................. confi dence interval upper limit (right edge)
df ................................. degrees of freedom
¯ x 1 ................................. mean of sample 1
¯ x 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
6-6-11
Confi dence Interval