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John is an undergraduate business major studying at a local

  • John is an undergraduate business major studying at a local university. He wonders how his grade point average (GPA) can affect his future earnings. He asks five recent business school graduates information on their GPA and income (in $1,000s). The following table shows this information.

    a. Construct a scatterplot and verify that estimating a simple linear regression is appropriate in this case. b. Calculate and . What is the sample regression equation? c. Interpret the coefficient for GPA. d. Find the predicted income earned if a GPA equals 3.0, 3.3, and 3.6.


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