Analysis of Variance (ANOVA)

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

このコマンドの見つけ方

From the menu bar:

[データ]>[統計]>[分散分析(ANOVA)]を選択します

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.


データ

入力範囲: 分析対象のデータ範囲の参照です。

結果貼り付け先: 検定の結果表示の先頭のセルの参照です。

Grouped By

Select whether the input data has columns or rows layout.

Type

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

Parameters

Alpha: the level of significance of the test.

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

Open file with example:

Example

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 - Single Factor

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

Source of Variation

SS

df

MS

F

P-value

F-critical

Between Groups

1876.5683284457

2

938.2841642229

4.3604117704

0.0224614952

3.340385558

Within Groups

6025.1090909091

28

215.1824675325

Total

7901.6774193548

30


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