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Table 4.

Multifactorial example results. Negative values mean that the “low” level had more germinated seeds than the “high” level. Since no replicates of the experiment were performed, we cannot determine F-value, but it is apparent that seed size and covering as well as the interaction between those two factors had large impacts on germination.

SampleNumber GerminatedAnalysis – all numbers refer to number of seeds germinated
115Factor Levels (High vs. Low)Mean of High LevelMean of Low LevelDifference
 Factor A South vs. north exposure 4.75 5.38 −0.63 
Factor B Potting soil vs. loam soil 5.13 5.00 0.13 
Factor C Big vs. small seeds 8.50 1.63 6.88 
17 Factor D Covered vs. uncovered 10.00 0.13 9.88 
     
Interactions     
A × B −1.13    
18 A × C −0.38    
10 A × D −0.88    
11 B × C −0.63    
12 B × D 0.38    
13 18 C × D 7.13    
14      
15      
16      
Grand mean 5.06 seeds germinated  
SampleNumber GerminatedAnalysis – all numbers refer to number of seeds germinated
115Factor Levels (High vs. Low)Mean of High LevelMean of Low LevelDifference
 Factor A South vs. north exposure 4.75 5.38 −0.63 
Factor B Potting soil vs. loam soil 5.13 5.00 0.13 
Factor C Big vs. small seeds 8.50 1.63 6.88 
17 Factor D Covered vs. uncovered 10.00 0.13 9.88 
     
Interactions     
A × B −1.13    
18 A × C −0.38    
10 A × D −0.88    
11 B × C −0.63    
12 B × D 0.38    
13 18 C × D 7.13    
14      
15      
16      
Grand mean 5.06 seeds germinated  
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