Researchers are interested in whether rearing conditions lead to aggression in laboratory animals. The animals were randomly assigned to be reared under three different conditions. The following table shows the aggression scores for each animal. Does the mean aggression score differ for the three groups? Use a 5% level of significance. 1) the appropriate null and alternative hypotheses; 2) the appropriate test; 3) the decision rule; 4) the calculation of the test statistic; and 5) your conclusion including a comparison to alpha or the critical value. Rearing Condition Extremely Crowded Moderately Crowded Not Crowded 30 20 10 30 10 10 30 15 20 25 20 10 35 20 10 30 20 20 20 25 10 25 30 20 30 25 10
Researchers are interested in whether rearing conditions lead to aggression in laboratory animals. The animals were randomly assigned to be reared under three different conditions. The following table shows the aggression scores for each animal. Does the
Rearing Condition
Extremely Crowded Moderately Crowded Not Crowded
30 20 10
30 10 10
30 15 20
25 20 10
35 20 10
30 20 20
20 25 10
25 30 20
30 25 10
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