7-9-5

 

 

 

Tests

Example

 

 

 

 

 

 

 

 

 

 

Sample A

 

Sample B

 

Size

40

 

45

 

Standard deviation

23.16

 

18.51

 

Mean

65.43

 

71.87

•Statistics Wizard Operation

(1)On the menu bar, tap [Calc] and then [Test].

(2)Select [Two-Sample ZTest] and [Variable], and then tap [Next >>].

(3)Select the μ1 condition [≠] and input values.

(4)Tap [Next >>].

(5)To display the graph, tap $.

uProgram, eActivity or Main Application

Command: TwoSampleZTest

Command Syntax

Syntax 1 (list format)

“μ1 condition”, σ1 value, σ2 value, List(1), List(2), Freq(1) (or 1), Freq(2) (or 1) * “Freq” can be omitted. Doing so sets “1” for “Freq”.

Syntax 2 (parameter format)

“μ1 condition”, σ1 value, σ2 value, o1 value, n1 value, o2 value, n2 value

Input Example:

Syntax 1 (list format)

TwoSampleZTest “≠”,1,1,list1,list2,1,1

Syntax 2 (parameter format)

TwoSampleZTest “≠”,23.16,18.51,65.43,40,71.87,45

1-Prop Z Test

Menu: [Test]-[One-Prop ZTest]

Description: This command tests whether successes achieve a fixed proportion.

A 1-Prop Z Test is used for normal distribution.

 

 

x

 

Z =

 

n

— p0

p0 : expected sample proportion

 

 

 

 

n : sample size

 

 

 

 

 

 

p0)1n− p0)

 

 

 

 

 

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