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Definition of Term
Prop condition : sample proportion test condition (" " specifies two-tail test, "<"
p
:
0
x
:
n
:
Calculation Re ult Output
Prop 0.5 : test condition
z
z
:
p
p
:
ˆ p
:
estimated sample proportion
n
:
sample size
Example
Data : 13
Sample size : 100
Expected proportion : 20%
• Stati tic Wizard Operation
(1) On the menu bar, tap [Calc] and then [Test].
(2) Select [One-Prop ZTest] and then tap [Next >>].
(3) Select Prop condition [ ] and input values.
(4) Tap [Next >>].
(5) To display the graph, tap
Program, eActivity or Main Application
Command: OnePropZTest
Command Syntax
"Prop condition",
Input Example:
OnePropZTest " ",0.2,13,100
Z
2-Prop
Te t
Menu:
[Test]-[Two-Prop ZTest]
De cription: This command compares the propor tion of successes for two populations.
A 2-Prop
Z =
7-9-6
Tests
specifies lower one-tail test, ">" specifies upper one-tail test.)
expected sample proportion (0 <
sample value (integer,
sample size (positive integer)
value
-value
.
p
x
value,
value,
0
Z
Test is used for normal distribution.
x
x
1
2
—
n
n
1
2
1
1
p(1 — p )
+
n
n
1
2
20060301
p
< 1)
0
x
0)
n
value
x
: data value of sample 1
1
x
: data value of sample 2
2
n
: size of sample 1
1
n
: size of sample 2
2
ˆ p
: estimated sample proportion
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