The Following Excel Scatterplot with the Fitted Quadratic Regression Equation

question 37

Multiple Choice

The following Excel scatterplot with the fitted quadratic regression equation illustrates the observed relationship between productivity and the number of hired workers. Assuming that the number of hired workers must be integer,how many workers should be hired to achieve the highest productivity?

• A) 26
• B) 28
• C) 30
• D) 32

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