Business Statistics Quiz
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REGRESSION AND FORECASTING
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An analyst develops a quadratic regression model: y^=45+2.3x−0.08x2\hat{y} = 45 + 2.3x - 0.08x^2 using data where xx ranges from 10 to 50. The model fits well with R2=0.92R^2 = 0.92. A manager asks for a prediction when x=75x = 75. What is the most significant limitation of using this model for this prediction?
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