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Test Command List
k Z Test
1-Sample Z Test
Command: OneSampleZTestⅪ
Description: Tests a hypothesis relative to a population mean when population standard
deviation is known. A 1-Sample Z Test is used for normal distribution.
Z =
o –
0
σ
µ
n
o : mean of sample data
µ
0 : assumed population mean
σ
: population standard deviation
n : sample size
Command Syntax
Syntax 1 (list format)
“
µ
condition”,
µ
0 value,
σ
value, List, Freq (or 1)
* “Freq” can be omitted. Doing so sets “1” for “Freq”.
Syntax 2 (parameter format)
“
µ
condition”,
µ
0 value,
σ
value, o value, n value
Definition of Terms
µ
condition : population mean value test conditions (“≠” specifies two-tail test,
“<”specifies lower one-tail test, “>” specifies upper one-tail test.)
µ
0 : assumed population mean
σ
: population standard deviation (
σ
> 0)
List : data list
Freq : frequency (1 or list name)
o :mean of sample data
n : sample size (positive integer)
Input Example:
Syntax 1 (list format)
OneSampleZTest “≠”,0,1,list1,1
Syntax 2 (parameter format)
OneSampleZTest “≠”,0,1,11.82,1
Calculation Result Output
µ
≠ 0: test condition
z : z value
p : p-value
o:mean of sample data
x
σ
n–1: sample standard deviation (Displayed only for list format.)
n: sample size
7-9-2
Tests