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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
μ
1
condition [
x
] and input values.
(4) Tap [Next >>].
(5) To display the graph, tap
.
S
Program, eActivity or Main Application
Command: TwoSampleZTest
:
Command Syntax
Syntax 1 (list format)
“
μ
1
condition”,
σ
1
value,
σ
2
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)
“
μ
1
condition”,
σ
1
value,
σ
2
value,
M
1
value,
n
1
value,
M
2
value,
n
2
value
Input Example:
Syntax 1 (list format)
TwoSampleZTest “
x
”,1,1,list1,list2,1,1
Syntax 2 (parameter format)
TwoSampleZTest “
x
”,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.
Z =
n
x
n
p
0
p
0
)
—
p
0
p
0
: expected sample proportion
n
: sample size
7-9-5
Tests
1
−
)