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The paper "A Cross-National Relationship Between Sugar Consumption and Major Depression?" (Depression and Anxiety [2002]: 118-120) concluded that there was a correlation between re?ned sugar consumption (calories per person per day) and annual rate of major depression (cases per 100 people) based on data

a. Construct a scatterplot, and comment on the features of the plot.

b. Does there appear to be a linear relationship between the two variables? How would you characterize the relationship?

c. Compute the value of the correlation coef?cient. Is the value of r consistent with your answer to Part (b)?

d. Is it reasonable to conclude that test anxiety caused poor exam performance? Explain.

Microeconomics, Economics

  • Category:- Microeconomics
  • Reference No.:- M91724287

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