Question

There are four treatment groups in the experiment, with 13 lizards within each treatment

T1: Brown lizard, brown leaf

T2: Brown lizard, green leaf

T3: Green lizard, green leaf

T4: Green lizard, brown leaf

Calculate the main effect of leaf color, as the difference in the relevant summary statistic for brown lizard minus green lizards, and interpret it's significance from your statistical test. Describe what the main effect is telling you about the biology of the system.

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Mean of Fitness

	Brown leaves	Green leaves
Brown lizard	8.088210	7.157375
Green lizard	9.053549	10.004778

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Use underneath table to acquire MS and F-statisitc

	degree of freedom	Sum of Squares
Lizard Color	1	50.880
Leaf Color	1	0.001
LizardColor:LeafColor(interaction)	1	12.398
Residuals	52	97.122

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For all F-statistics of LizardColor, LeafColor, and LizardColor:LeafColor(interaction), the critical value of F statisitc is 3.18(alpha = 0.05), this is a 2way ANOVA

Answer 1

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