Casio 330 - Manual (Page 438)

20060301
7-9-6
Tests
Definition of Terms
Prop condition : sample proportion test condition (“ x” specifies two-tail test, “<”
specifies lower one-tail test, “>” specifies upper one-tail test.)
p
0
: expected sample proportion (0 < p
0
< 1)
x : sample value (integer, x 0)
n : sample size (positive integer)
Calculation Result Output
Prop x0.5 : test condition
z : z value
p : p -value
ˆp : estimated sample proportion
n : sample size
Example
Data : 13
Sample size : 100
Expected proportion : 20%
• Statistics 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 [ x] and input values.
(4) Tap [Next >>].
(5) To display the graph, tap .
SProgram, eActivity or Main Application
Command: OnePropZ Test :
Command Syntax
“Prop condition”, p
0
value, x value, n value
Input Example:
OnePropZTest “ x”,0.2,13,100
2-Prop Z Test
Menu: [Test]-[Two-Prop ZTest]
Description: This command compares the propor tion of successes for two populations.
A 2-Prop Z Test is used for normal distribution.
Z
=
n
1
x
1
n
2
x
2 —
p
(1 — p )
n
1
1
n
2
1
+
x
1
: data value of sample 1
x
2
: data value of sample 2
n
1
: size of sample 1
n
2
: size of sample 2
ˆp : estimated sample proportion