A sales manager was interested in determining if there is a

A sales manager was interested in determining if there is a relationship between college GPA and sales performance among salespeople hired within the last year. A sample of recently hired salespeople was selected and the number of units each sold last month recorded. Relevant data appear in the table below. Below are the scatterplot, regression results, and residual plots for these data. The regression equation is: The Regression Table is: Regression performance Summary Statistics are: Analysis of variances:

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