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Definition of Term
p
condition : sample proportion test conditions (" " specifies two-tail test, "<"
1
x
:
1
n
:
1
x
:
2
n
:
2
Calculation Re ult Output
p
p
>
: test condition
1
2
z
z
:
value
p
p
:
-value
ˆ p
:
estimated proportion of sample 1
1
ˆ p
:
estimated proportion of sample 2
2
ˆ p
:
estimated sample proportion
n
:
size of sample 1
1
n
:
size of sample 2
2
Example
Data1 : 220 , sample size : 400
Data2 : 184 , sample size : 400
• Stati tic Wizard Operation
(1) On the menu bar, tap [Calc] and then [Test].
(2) Select [Two-Prop ZTest] and then tap [Next >>].
(3) Select
p
condition [>] and input values.
1
(4) Tap [Next >>].
(5) To display the graph, tap
Program, eActivity or Main Application
Command: TwoPropZTest
Command Syntax
p
"
condition",
1
Input Example:
TwoPropZTest ">",220,400,184,400
7-9-7
Tests
specifies one-tail test where sample 1 is smaller than sample 2, ">"
specifies one-tail test where sample 1 is greater than sample 2.)
x
data value (integer,
1
size of sample 1 (positive integer)
x
data value (integer,
2
size of sample 2 (positive integer)
.
x
n
x
value,
value,
value,
1
1
2
20090601
0) of sample 1
0) of sample 2
n
value
2
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