The main effect of fertilizer type

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Reference no: EM13241022

A home gardener wanted to determine which combination of plant seeds and fertilizer would produce the best tomatoes. She planted 3 different tomato seeds and used 5 different types of fertilizer for each type of seed (15 combinations of seed and fertilizer total). She created a source table for the results of her ANOVA but unfortunately spilled coffee on it and blurred some of the cells.

Source

SS

df

MS

F

Seed

512.867

2

 

28.283

Fertilizer

449.467

4

112.367

 

Seed*Fertilizer

143.133

 

17.892

1.973

Within

136.000

 

9.067

 

Total

 

29

 

 

a) Fill in the missing cells.

b) Which of the F statistics are significant? Be sure to give the critical F value(s) you used to determine this.

c) What is the effect size for the main effect of fertilizer type? What size effect is this?

Reference no: EM13241022

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