Analysis of Variance (ANOVA)

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

Selle käsu kasutamiseks...

Choose Data - 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.


Andmed

Vahemik: ala, mis sisaldab andmeid, mida tuleb analĂĽĂĽsida.

Tulemused: viide lahtrivahemiku, kuhu tulemused väljastatakse, ülemisele vasakpoolsele lahtrile.

RĂĽhmitamine

Vali, kas sisendandmed paiknevad veergudes või ridades.

Type

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

Parameetrid

Alpha: the level of significance of the test.

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

Näide

Järgnevaid andmeid kasutatakse näidetena

A

B

C

1

Matemaatika

FĂĽĂĽsika

Bioloogia

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 - ĂĽks tegur

Alpha

0.05

Groups

Count

Sum

Mean

Variance

Column 1

11

461

41.9090909091

139.4909090909

Column 2

10

597

59.7

287.1222222222

Column 3

10

447

44.7

227.3444444444

Variatsiooniallikas

SS

df

MS

F

P-väärtus

F-critical

RĂĽhmade vahel

1876.5683284457

2

938.2841642229

4.3604117704

0.0224614952

3.340385558

RĂĽhmade sees

6025.1090909091

28

215.1824675325

Total

7901.6774193548

30


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