Quarterly sales figures for e-commerce retail sales were obtained from the first quarter of 2009 through the fourth quarter of 2015. A regression model was estimated to describe the trend in e-commerce retail sales over time.
a. Based on the plot of residuals versus predicted values, is the linear model appropriate? Explain. b. The Durbin-Watson statistic for this regression model was found to be 1.727. What can you conclude from this statistic at the 0.01 level of significance?

Question

Quarterly sales figures for e-commerce retail sales were obtained from the first quarter of 2009 through the fourth quarter of 2015. A regression model was estimated to describe the trend in e-commerce retail sales over time.
a. Based on the plot of residuals versus predicted values, is the linear model appropriate? Explain.  b. The Durbin-Watson statistic for this regression model was found to be 1.727. What can you conclude from this statistic at the 0.01 level of significance?

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The Answer of Quarterly sales figures for e-commerce retail sales were obtained from the first quarter of 2009 through the fourth quarter of 2015. A regression model was estimated to describe the trend in e-commerce retail sales over time.
a. Based on the plot of residuals versus predicted values, is the linear model appropriate? Explain.  b. The Durbin-Watson statistic for this regression model was found to be 1.727. What can you conclude from this statistic at the 0.01 level of significance?

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