Z-test

Calculates the z-Test of two data samples.

Så här använder du det här kommandot...

Från menylisten:

Choose Data - Statistics - Z-test

Från gränssnittet med flikar:

Choose Data - Statistics - Z-test.

On the Data menu of the Data tab, choose Statistics - Z-test.


note

For more information on Z-tests, refer to the corresponding Wikipedia article.


Data

Variable 1 range: The reference of the range of the first data series to analyze.

Variable 2 range: The reference of the range of the second data series to analyze.

Results to: The reference of the top left cell of the range where the test will be displayed.

Grouped By

Select whether the input data has columns or rows layout.

Öppna fil med exempel:

Exempel

The following table has two data sets.

A

B

1

28

19

2

26

13

3

31

12

4

23

5

5

20

34

6

27

31

7

28

31

8

14

12

9

4

24

10

0

23

11

2

19

12

8

10

13

9

33


Results for z-Test:

The following table shows the z-Test for the data series above:

z-test

Alfa

0.05

Hypotetisk medeldifferens

0

Variabel 1

Variabel 2

Känd varians

0

0

Medelvärde

16.9230769231

20.4615384615

Observationer

13

13

Observerad medeldifferens

-3.5384615385

z

#DIV/0!

P (Z<=z) en sida

#DIV/0!

z kritisk en sida

1.644853627

P (Z<=z) tvåsidig

#DIV/0!

z kritisk tvåsidig

1.9599639845


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