Casio ClassPad 300 PLUS User Manual page 369

Z
2-Sample Test
Command: TwoSampleZTest
Description: Tests a hypothesis relative to the population mean of two populations when the
standard deviations of the two populations are known. A 2-Sample
used for normal distributions.
Z =
Command Syntax
Syntax 1 (list format)
" µ condition", σ
1
* "Freq" can be omitted. Doing so sets "1" for "Freq".
Syntax 2 (parameter format)
" µ condition", σ
1
Definition of Terms
µ
condition : population mean value test conditions ("≠" specifies two-tail test,
1
σ
:
1
σ
:
2
List(1) :
List(2) :
Freq(1) :
Freq(2) :
o
:
1
n
:
1
o
:
2
n
:
2
Input Example:
Syntax 1 (list format)
TwoSampleZTest "≠",1,1,list1,list2,1,1
Syntax 2 (parameter format)
TwoSampleZTest "≠",1,1,11.5,10,15,20
7-9-3
Tests
o – o
o
: mean of sample 1 data
1
1 2
o
: mean of sample 2 data
σ σ
2
2 2
σ
1 2
+
: population standard deviation of sample 1
1
n n
1 2 σ
: population standard deviation of sample 2
2
n
: size of sample 1
1
n
: size of sample 2
2
value, σ
value, List(1), List(2), Freq(1) (or 1), Freq(2) (or 1)
1 2
value, σ
o
value, value,
1 2 1
"<" specifies one-tail test where sample 1 is less than sample 2, ">"
specifies one-tail test where sample 1 is greater than sample 2).
population standard deviation of sample 1 ( σ
population standard deviation of sample 2 ( σ
list where sample 1 data is located
list where sample 2 data is located
frequency of sample 1 (1 or list name)
frequency of sample 2 (1 or list name)
mean of sample 1 data
size of sample 1 (positive integer)
mean of sample 2 data
size of sample 2 (positive integer)
20050501
o
n n
value, value, value
1 2 2
> 0)
1
> 0)
2
Z
Test is