6-22
I
Calculations Using the TEST Command
Important!
• The following operations cannot be performed on the fx-7400G
II
.
You can use special functions in the
RUN • MAT
mode or
PRGM
mode to perform calculations
that are the same as the
STAT
mode
Z
Test,
t
Test, and other test calculations (page 6-22).
Example To determine the
z
score and
p
-value when a one-sample
Z
test is
performed under the conditions below:
test condition (
ƫ
condition)
x
ƫ
0
*, assumed population mean
ƫ
0
= 0,
population standard deviation
Ʊ
= 1, sample mean
M
= 1, number of
samples
n
= 2
* “
ƫ
condition
x
ƫ
0
” can be specified by entering 0 as the initial argument of
the one-sample
Z
test command “OneSampleZTest”.
1. From the Main Menu, enter the
RUN • MAT
mode.
2. Perform the following key operation.
*
(STAT)
(
E
)
(TEST)
(Z)
(1-S)
??@@A
U
)))
(LIST)
(List)
(Ans)
U
The following calculation results are displayed as ListAns elements 1 through 4.
1:
z
score
2:
p
-value
3:
M
4:
n
• For details about the function of the supported TEST command and their syntax, see “Using
the TEST Command to Execute a Command in a Program” (page 8-32).
5. Tests
Important!
• Test calculations cannot be performed on the fx-7400G
II
.
The
Z
Test
provides a variety of different standardization-based tests. They make it possible to
test whether or not a sample accurately represents the population when the standard deviation
of a population (such as the entire population of a country) is known from previous tests.
Z
testing is used for market research and public opinion research, that need to be performed
repeatedly.
Summary of Contents for FX-7400GII
Page 337: ...E CON2 Application ...
