Tests, I calculations using the test command – Casio FX-9750GII User Manual

Page 162

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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)

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.

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