Question

A plant physiologist investigated the effect of flooding on root metabolism in two tree

species: flood-tolerant river birch and the intolerant European birch. Four seedlings of

each species were flooded for one day, and four were used as controls. The concentration

of adenosine triphosphate (ATP) in the roots of each plant was measured. The data (nmol

ATP per mg tissue) as shown in the table.

River birch European Birch

Flooded Control Flooded Control  

	1.45	1.70	0.21	1.34
	1.19	2.04	0.58	0.99
	1.05	1.49	0.11	1.17
	1.07	1.91	0.27	1.30
Mean	1.19	1.785	0.2925	1.20

For these data, SS(species of birch)=2.19781, SS(flooding)=2.25751, SS(interaction)=0.097656,

and SS(within)=0.47438.

i. Construct the ANOVA table, include p-values.

iii. What is the F test statistic and its degrees of freedom for testing that species has no

effect on ATP concentration?

Answer 1