Casio ClassPad 300 User Manual page 379

Definition of Terms
C-Level : confidence level (0 < C-Level < 1)
List(1) : list where sample 1 data is located
List(2) : list where sample 2 data is located
Freq(1) : frequency of sample 1 (1 or list name)
Freq(2) : frequency of sample 2 (1 or list name)
Pooled : On or Off
o
: mean of sample 1 data
1
x
σ : standard deviation of sample 1 (
1 n -1
n
: size of sample 1 (positive integer)
1
o
: mean of sample 2 data
2
x
σ : standard deviation of sample 2 (
n
2 -1
n
: size of sample 2 (positive integer)
2
Input Example:
Syntax 1 (list format)
TwoSampleTInt 0.95,list1,list2,1,1,Off
Syntax 2 (parameter format)
TwoSampleTInt 0.95,80.4,2.07,30,84.2,1.96,35,On
Calculation Result Output
Left : interval lower limit (left edge)
Right : interval upper limit (right edge)
df
: degrees of freedom
o
: mean of sample 1 data
1
o
: mean of sample 2 data
2
x
σ : standard deviation of sample 1
1 n –1
x
σ : standard deviation of sample 2
n
2 –1
x
σ : pooled sample standard deviation (Displayed only when pooling is
p n
–1
turned on.)
n
: size of sample 1
1
n
: size of sample 2
2
7-10-8
Confidence Intervals
x
σ
1
x
σ
2
20021201
> 0)
n -1
> 0)
n
-1