Statistical modelling/Analysis of variance

The mean data set CS9Data1b was first used and the model:
length + bud / length + sucrose

fitted by Stats → Analysis of Variance… and selecting 'Split-Plot Design'. By clicking contrasts and selecting polynomials up to the cubic (see below) the output shown is produced.

Notice how two random sources of variation have been obtained: 'length.bud.stratum' and 'Residual'.

 
**** Analysis of variance *****
 
Variate: m_pgerm
Source of variation

d.f

s.s.

m.s.

v.r.

length stratum

2

150.57

75.28

0.43

length.bud stratum

3

524.32

174.77

1.82

 length.bud.slide stratum
sucros

7

15548.17

2221.17

23.17

  Lin

1

9784.53

9784.53

102.06

  Quad

1

5170.69

5170.69

53.93

  Cub

1

19.27

19.27

0.20

Deviations

4

573.67

143.42

1.50

Residual

35

3355.50

95.87

 
Total

47

19578.55

   

*** Tables of means ***
sucros 0.0 5.0 10.0 15.0 20.0 25.0 30.0
5.3 19.9 36.1 52.6 58.3 50.7 58.3
sucros 35.0            
  45.6            

***Standard errors of differences of means***
Table

sucros

rep.

6

d.f

35

s.e.d

5.653

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