Consider the Following to Answer the Question(s) Below

question 30

Multiple Choice

Consider the following to answer the question(s) below:
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 was recorded. Relevant data appear in the table below.
Below are the scatterplot, regression results, and residual plots for these data.
-The residual standard deviation, which measures the spread of points around the estimated regression line, is

• A) 3.256.
• B) 1.044.
• C) 1.63045.
• D) 34.70.
• E) 2.477.

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Definitions:

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