Paired t-test

Vypočíta párový t-test dvoch vzoriek údajov.

Pre prístup k tomuto príkazu...

From the menu bar:

Choose Data - Statistics - Paired t-test

From the tabbed interface:

Choose Data - Statistics - Paired t-test.

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


A paired t-test is any statistical hypothesis test that follows a Student's t distribution.

note

For more information on paired t-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 paired t-test:

The following table shows the paired t-test for the data series above:

paired t-test

Alfa

0.05

Rozdiel stredných hodnôt v hypotéze

0

Premenná 1

Premenná 2

stredný

16.9230769231

20.4615384615

Rozptyl

125.0769230769

94.4358974359

Pozorovania

13

13

Pearsonova korelácia

-0.0617539772

Pozorovaný rozdiel stredných hodnôt

-3.5384615385

Rozptyl rozdielov

232.9358974359

df

12

t štatistika

-0.8359262137

P (T<=t), jednostranné

0.2097651442

t kritické, jednostranné

1.7822875556

P (T<=t), obojstranné

0.4195302884

t kritické, obojstranné

2.1788128297


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