Analysis of Variance (ANOVA)

Produces the analysis of variance (ANOVA) of a given data set

Por atingi ĉi tiun komandon...

From the menu bar:

Choose Data - Statistics - Analysis of Variance (ANOVA)

From the tabbed interface:

Choose Data - Statistics - Analysis of Variance (ANOVA).

On the Data menu of the Data tab, choose Statistics - Analysis of Variance (ANOVA).


ANOVA is the acronym for ANalysis Of VAriance. This tool produces the analysis of variance of a given data set

note

For more information on ANOVA, refer to the corresponding Wikipedia article.


Datumoj

Input Range: The reference of the range of the data to analyze.

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

Grouped By

Select whether the input data has columns or rows layout.

Tipo

Select if the analysis is for a single factor or for two factor ANOVA.

Parametroj

Alpha: the level of significance of the test.

Rows per sample: Define how many rows a sample has.

Malfermi dosieron kun ekzemplo:

Ekzemplo

The following data will be used as example

A

B

C

1

Maths

Physics

Biology

2

47

67

33

3

36

68

42

4

40

65

44

5

39

64

60

6

38

43

7

47

84

62

8

29

80

51

9

27

49

40

10

57

49

12

11

56

33

60

12

57

13

26


The following table displays the results of the analysis of variance (ANOVA) of the sample data above.

ANOVA - Unuopa faktoro

Alfo

0.05

Grupoj

Nombro

Sumo

Mezumo

Varianco

Kolumno 1

11

461

41.9090909091

139.4909090909

Kolumno 2

10

597

59.7

287.1222222222

Kolumno 3

10

447

44.7

227.3444444444

Fonto de varieco

SS

df

MS

F

P-valoro

F-critical

Inter grupoj

1876.5683284457

2

938.2841642229

4.3604117704

0.0224614952

3.340385558

En grupoj

6025.1090909091

28

215.1824675325

Totalo

7901.6774193548

30


Bonvolu subteni nin!