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2. (10 points) Describe what an analysis of covariance is and tell what are its advantages and disadvantages. What does it mean if your covariate

2. (10 points) Describe what an analysis of covariance is and tell what are its advantages and disadvantages. What does it mean if your covariate is not significant? What does it mean if you have heterogeneity of the within groups regression coefficient and why is this a problem?

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