The following table lists a portion of Major League Baseball's (MLB's) leading pitchers, each pitcher's salary (In $ milliohs), and eamuu run average (ERA) for 2008. J. Santana C. Lee Salary 17.0 ERA 2.28 2.39 3.0 C. Hamels 0.2 3.00 Click here for the Excel Data File a-1. Estimate the model: Salary = lo + ERA + e. (Negative values should be indicated by a minus sign. Enter your answers, in millions, rounded to 2 decimal places.) Salary ERA a-2. Interpret the coefficient of ERA. A one-unit increase in ERA, predicted salary decreases by $3.20 million. O A one-unit increase in ERA, predicted salary increases by $3.20 million. OA one-unit increase in ERA, predicted salary decreases by $11.92 million. O A one-unit increase in ERA, predicted salary increases by $1.92 million.

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