company wishes to improve the gasoline mileage obtained by cars that use its regular unleaded gasoline. Company chemists suggest that an additive, ST-3000, be blended with gasoline. Data on mileage tests are collected under varying levels of ST-3000 used. (measured as the number of units of additive added to each gallon of gasoline) [Download dataset here) Use the following quadratic model to estimate the effects of ST-3000 on mpg performance. Here, the dependent variable is gasoline mileage (y), and the independent variable is additive units (x). y Bot Bixt Bản tr Provide the estimated coefficients for the following (round your answer to three decimal places): Bo B₁ B₂-
Units X 0 0 0 1 1 1 2 2 23 3 3 4 4 4 Mileage Y 25.8 26.1 25.4 29.6 29.2 29.8 32.0 31.4 31.7 31.7 31.5 31.2 29.4 29.0 29.5
An oil An oil company wishes to improve the gasoline mileage obtained by cars that use its regular unleaded gasoline. Company c
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