22. ne possible explanation for whyr some birds mi grate and others maintain year round residency in a single location is intelligence. Specically, birds with small brains. relative to their body size. are simply not smart enough to nd food during the winter and must migrate to warmer climates where food is easily available (Sol? Lefebvre, ii Eo-drigucI-Teijeiro, ZEUS). Birds with bigger brains. on the other hand, are more creative and can find food even when the weather turns harsh. Following are hypothetical data similar to the actual research results. The numbers represent relative brain sin for the individual birds in each sample. Shorr- Long i-ion Distance Distance Migrating Migrants Mi'g rants 13 E. 4 iv' = 13 13 ll '9! G = 13'] it} 7" 5 E}? = 2150 12 '9 6 lo 3 5 12 13 \"i M = 15 M = 9 M = IE- T = 9'4] T = 54 T = 3-5 SS=4E SS=34 SS=II5 3. Use an AHDVA with or = .135 to determine whether there are any signicant mean differences among the three groups of birds. b. Compute 111. the percentage of variance eaplained by the group differences, for these data