EQw7L‖

Z5iqi‖Z-test

vjPXp‖Calculates the z-Test of two data samples.

To access this command...

ebLJB‖From the menu bar:

WqwUh‖Choose Data - Statistics - Z-test

qBbLh‖From the tabbed interface:

eHqEH‖Choose Data - Statistics - Z-test.

9iyDA‖On the Data menu of the Data tab, choose Statistics - Z-test.


note

2khLG‖For more information on Z-tests, refer to the corresponding Wikipedia article.


uj2zU‖Data

G5qUC‖Variable 1 range: The reference of the range of the first data series to analyze.

6sDZb‖Variable 2 range: The reference of the range of the second data series to analyze.

SRfn5‖Results to: The reference of the top left cell of the range where the test will be displayed.

CxAAD‖Grouped By

AppmZ‖Select whether the input data has columns or rows layout.

MiUAf‖Example

uZ5BP‖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


WLqsj‖Results for z-Test:

bS4Zx‖The following table shows the z-Test for the data series above:

cyNij‖z-test

2jGDY‖Alpha

0.05

S4FZC‖Hypothesized Mean Difference

0

EyFTK‖Variable 1

yybKF‖Variable 2

zi3v9‖Known Variance

0

0

RozyW‖Mean

16.9230769231

20.4615384615

fV5Cq‖Observations

13

13

Nfz8K‖Observed Mean Difference

-3.5384615385

MDCGb‖z

N35cE‖#DIV/0!

BiBJi‖P (Z<=z) one-tail

HqGPf‖#DIV/0!

2NUBk‖z Critical one-tail

1.644853627

WBGeU‖P (Z<=z) two-tail

TPsmf‖#DIV/0!

NCMYu‖z Critical two-tail

1.9599639845