Casio CLASSPAD330PLUS pˆ n, 2-Prop Z Test

z: p: pˆ n:

p0 : x :

n :

7-9-6 Tests

Definition of Terms

Prop condition : sample proportion test condition (“≠” specifies two-tail test, “<” specifies lower one-tail test, “>” specifies upper one-tail test.) expected sample proportion (0 < p0 < 1)

sample value (integer, x > 0) sample size (positive integer)

Calculation Result Output

Prop≠0.5 : test condition z value p-value

: estimated sample proportion 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 [≠] and input values.

(4)Tap [Next >>].

(5)To display the graph, tap $.

uProgram, eActivity or Main Application

Command: OnePropZ Test 

Command Syntax

“Prop condition”, p0 value, x value, n value

Input Example:

OnePropZTest “≠”,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.

		x1	—	x2			x1	: data value of sample 1
Z =		n1		n2			x2	: data value of sample 2
	p(1— p )			1	+	1	n1	: size of sample 1
				n1		n2	n2	: size of sample 2
							ˆp	: estimated sample proportion

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