Z-test

Calculates the z-Test of two data samples.

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Escueyi Datos - Estadístiques - Prueba Z

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Escueyi Datos - Estadístiques - Prueba Z.

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note

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


Datos

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:

Exemplu

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:

Prueba z

Alfa

0.05

Hypothesized Mean Difference

0

Variable 1

Variable 2

Known Variance

0

0

Mean

16.9230769231

20.4615384615

Observaciones

13

13

Observed Mean Difference

-3.5384615385

z

#DIV/0!

P (Z<=z) one-tail

#DIV/0!

z Critical one-tail

1.644853627

P (Z<=z) two-tail

#DIV/0!

z Critical two-tail

1.9599639845


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