F test - Maeckes

fx-9860GII

Two-sample F test

On a Casio calculator you can select a 2-sample F test

TEST F

MENU 2 F3 F4

Explanation

The two-sample F test verifies the hypothesis according to which condition the result for a sample composed of multiple factors will not change the result for the population if one or more of those factors is removed. The F test is applied to F distribution. Depending on the Data type different screens are shown.

2-Sample FTest

Data :List ↑

σ1 :≠σ2
List(1) :List1
List(2) :List2
Freq(1) :1
Freq(2) :1
Save Res:None
Execute

↓

2-Sample FTest

Data    :Variable ↑

σ1      :≠σ2
sx1     :1
n1      :0
sx2     :1
n2      :0
Save Res:None
Execute

↓

Data type

Data from lists or variables.

Data :List

List List data

Var Variable data

σ1

Sample standard deviation test conditions.

σ1 :≠σ2

≠ “≠σ₂” specifies two-tail test.

< “<σ₂” specifies one-tail test where sample 1 is smaller than sample 2.

> “>σ₂” specifies one-tail test where sample 1 is greater than sample 2.

List(1)

List whose contents you want to use as sample 1 data.

List(1) :List1

LIST List 1∼26

List(2)

List whose contents you want to use as sample 2 data.

List(2) :List2

LIST List 1∼26

Freq(1)

Frequency of sample 1.

Freq(1) :1

1 Frequency = 1

LIST List 1∼26

Freq(2)

Frequency of sample 2.

Freq(2) :1

1 Frequency = 1

LIST List 1∼26

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sx1

Standard deviation of sample 1 (s_x1 > 0).

sx 1 :0

n1

Size of sample 1 (positive integer).

n1 :0

sx2

Standard deviation of sample 2 (s_x2 > 0).

sx 2 :0

n2

Size of sample 2 (positive integer).

n2 :0

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Save response

Save response of the test.

Save Res:None

None Do not save

LIST Specify list 1∼26 and save

Execute

Execute a calculation or draw a graph.

Execute

CALC Execute a calculation
You can also use the EXE key.

Draw Draw a graph

History

The name F test is a tribute to British mathematician Ronald Fisher (1890 - 1962).

≠	“≠σ₂” specifies two-tail test.
<	“<σ₂” specifies one-tail test where sample 1 is smaller than sample 2.
>	“>σ₂” specifies one-tail test where sample 1 is greater than sample 2.

CALC	Execute a calculation You can also use the EXE key.
Draw	Draw a graph