Analysis of Variance

Variable:

Price

grouped by:

Size

Sum of Squares

Degrees of Freedom

Mean Square

F

P

Between Groups

641822014.5

2

320911007.3

13.96376784

8.08847E-06

Within Groups

1585736726

69

22981691.68

Total

2227558740

71

31374066.77

Bartlett-Test for homogeneity of variances

Chi-square

Degrees of Freedom

P

20.754688

2

3.11298E-05

Multiple comparisons

Method:

Bonferroni

Significance (p):

0.05

Critical differences in mean between group pairs (upper right)

and calculation of significances (lower left):

(Mean)

compact

medium

large

compact

3832.5

----

3807.37638

3850.398947

medium

6129.1

no

----

3090.996206

large

11277.71429

yes

yes

----

Subset 1:

compact

medium

Subset 2:

large