Quarterly Figures for E-Commerce Retail Sales Were Obtained from the First

question 1

Multiple Choice

Quarterly figures for e-commerce retail sales were obtained from the first quarter of 2001 through the fourth quarter of 2007. A regression model was estimated to describe the trend in e-commerce retail sales over time. Suppose that for the regression model estimated using the data described, the Durbin-Watson statistic was calculated as 1.727. Using α = 0.01 we can conclude that

• A) There is evidence of positive autocorrelation.
• B) There is evidence of negative autocorrelation.
• C) There is no evidence of positive or negative autocorrelation.
• D) There is evidence of an outlier.
• E) The test is inconclusive.

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Definitions:

Attribution

The process of explaining events.

Causal Explanations

Attempts to reveal the reasons or causes behind events, behaviors, or conditions.

Halo Effect

A cognitive bias where an observer's overall impression of a person, brand, or product positively influences their feelings and thoughts about that entity's specific traits.

Performance Evaluations

The systematic assessment of an individual's job performance and productivity, typically based on criteria such as quality of work, efficiency, and goal achievement.