4 17. A researcher is interested in seeing if the amount of protein in a pigeon's...

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4 17. A researcher is interested in seeing if the amount of protein in a pigeon's feed influences the rate at which the pigeon pecks a key to receive a reward. She randomly assigns the pigeons to one of the three different types of feed: Type A, which has a large amount of protein; Type B, which had a moderate amount of protein; and Type C, which had very little protein. Are their significant differences in the rate of pecking based on food type? The data follows: Type A 20 25 25 20 30 n1= X₁ = ΣΧ = ΣΧ = Type B 30 35 35 35 33 35 m₂= X= ΣΧ. = ΣΧ = Type C 20 35 40 40 n3= 45 X;= ΣΧ; = ΣΧ= a. Is this a between-subjects design or within- subjects design? (1 point) k= N= T= [X²= Calculate the effect size using omega squared. (2 points) o. Interpret your effect size results. (1 point) 4 17. A researcher is interested in seeing if the amount of protein in a pigeon's feed influences the rate at which the pigeon pecks a key to receive a reward. She randomly assigns the pigeons to one of the three different types of feed: Type A, which has a large amount of protein; Type B, which had a moderate amount of protein; and Type C, which had very little protein. Are their significant differences in the rate of pecking based on food type? The data follows: Type A 20 25 25 20 30 n1= X₁ = ΣΧ = ΣΧ = Type B 30 35 35 35 33 35 m₂= X= ΣΧ. = ΣΧ = Type C 20 35 40 40 n3= 45 X;= ΣΧ; = ΣΧ= a. Is this a between-subjects design or within- subjects design? (1 point) k= N= T= [X²= Calculate the effect size using omega squared. (2 points) o. Interpret your effect size results. (1 point)

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