Z-test

Vypočíta z-test dvoch dátových vzoriek.

Pre prístup k tomuto príkazu...

From the menu bar:

Choose Data - Statistics - Z-test

From the tabbed interface:

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.


Dáta

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.

Open file with example:

Príklad

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

Rozdiel stredných hodnôt v hypotéze

0

Premenná 1

Premenná 2

Známa variancia

0

0

stredný

16.9230769231

20.4615384615

Pozorovania

13

13

Pozorovaný rozdiel stredných hodnôt

-3.5384615385

z

#DIV/0!

P (Z<=z), jednostranné

#DIV/0!

z kritické, jednostranné

1.644853627

P (Z<=z), obojstranné

#DIV/0!

z kritické, obojstranné

1.9599639845


Please support us!