Analysis of Variance (ANOVA)

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

이 명령을 사용하려면...

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.


데이터

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.

유형

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

매개 변수

Alpha: the level of significance of the test.

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

Open file with example:

예제

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 - 단일 요소

알파

0.05

그룹

Count

합계

평균값

분산

Column 1

11

461

41.9090909091

139.4909090909

Column 2

10

597

59.7

287.1222222222

Column 3

10

447

44.7

227.3444444444

분산 원본

SS

df

MS

F

P-값

F-critical

그룹 간

1876.5683284457

2

938.2841642229

4.3604117704

0.0224614952

3.340385558

그룹 내

6025.1090909091

28

215.1824675325

전체

7901.6774193548

30


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