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United Oil Company is attempting to develop a reasonably priced unleaded gasoline that will deliver higher gasoline mileages than can be achieved by its current unleaded gasolines. As part of its development process, United Oil wishes to study the effect of two independent variables-x1, amount of gasoline additive RST (0, 1, or 2 units), and x2, amount of gasoline additive XST (0, 1, 2, or 3 units), on gasoline mileage, y. Mileage tests are carried out using equipment that simulates driving under prescribed conditions. The combinations of x1 and x2 used in the experiment, along with the corresponding values of y, are given below. RST XST Gas Units Units Mileage (y, mpg) (x1) (x2) 27.30 28.57 28.12 1 29.72 1 30.72 2 28.30 2 29.77 1 32.85 1 33.20 1 1 33.96 1 1 34.04 2 32.10 2 33.30 1 2 34.83 35.68 1 1 2 35.03 2 2 33.09 2 2 34.81 2 34.64 1 33.17 2 32.17 33.45 Nm3m

United Oil Company is attempting to develop a reasonably priced unleaded gasoline that will deliver higher gasoline mileages than can be achieved by its current unleaded gasolines. As part of its development process, United Oil wishes to study the effect of two independent variables-x1, amount of gasoline additive RST (0, 1, or 2 units), and x2, amount of gasoline additive XST (0, 1, 2, or 3 units), on gasoline mileage, y. Mileage tests are carried out using equipment that simulates driving under prescribed conditions. The combinations of x1 and x2 used in the experiment, along with the corresponding values of y, are given below. RST XST Gas Units Units Mileage (y, mpg) (x1) (x2) 27.30 28.57 28.12 1 29.72 1 30.72 2 28.30 2 29.77 1 32.85 1 33.20 1 1 33.96 1 1 34.04 2 32.10 2 33.30 1 2 34.83 35.68 1 1 2 35.03 2 2 33.09 2 2 34.81 2 34.64 1 33.17 2 32.17 33.45 Nm3m

Algebra: Structure And Method, Book 1
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter8: Introduction To Functions
Section8.10: Inverse Variation
Problem 3ST
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Using the model, y = 6g + 81x1 + 82x1² + 83x2 + 84x2? + ɛ, calculate the point estimate. (Moreover, consider the mean mileage obtained by all gallons of the gasoline when it is made with one unit of RST and two units of XST (a combination that the data on the page margin indicates would maximize mean mileage). Do not round intermediate calculations. Round your answer to 4 decimal places.) Point estimate
Transcribed Image Text:Using the model, y = 6g + 81x1 + 82x1² + 83x2 + 84x2? + ɛ, calculate the point estimate. (Moreover, consider the mean mileage obtained by all gallons of the gasoline when it is made with one unit of RST and two units of XST (a combination that the data on the page margin indicates would maximize mean mileage). Do not round intermediate calculations. Round your answer to 4 decimal places.) Point estimate
United Oil Company is attempting to develop a reasonably priced unleaded gasoline that will deliver higher gasoline mileages than can be achieved by its current unleaded gasolines. As part of its development process, United Oil wishes to study the effect of two independent variables-x1, amount of gasoline additive RST (0, 1, or 2 units), and x2, amount of gasoline additive XST (0, 1, 2, or 3 units), on gasoline mileage, y. Mileage tests are carried out using equipment that simulates driving under prescribed conditions. The combinations of xq and x2 used in the experiment, along with the corresponding values of y, are given below. RST XST Gas Units Units Mileage (y, mpg) (x1) (x2) 27.30 28.57 28.12 1 29.72 1 30.72 2 28.30 29.77 32.85 33.20 1 1 33.96 1 34.04 32.10 2 33.30 1 34.83 1 2 35.68 1 35.03 2 33.09 2 2 34.81 2 34.64 1 3 33.17 2 3 32.17 3 33.45
Transcribed Image Text:United Oil Company is attempting to develop a reasonably priced unleaded gasoline that will deliver higher gasoline mileages than can be achieved by its current unleaded gasolines. As part of its development process, United Oil wishes to study the effect of two independent variables-x1, amount of gasoline additive RST (0, 1, or 2 units), and x2, amount of gasoline additive XST (0, 1, 2, or 3 units), on gasoline mileage, y. Mileage tests are carried out using equipment that simulates driving under prescribed conditions. The combinations of xq and x2 used in the experiment, along with the corresponding values of y, are given below. RST XST Gas Units Units Mileage (y, mpg) (x1) (x2) 27.30 28.57 28.12 1 29.72 1 30.72 2 28.30 29.77 32.85 33.20 1 1 33.96 1 34.04 32.10 2 33.30 1 34.83 1 2 35.68 1 35.03 2 33.09 2 2 34.81 2 34.64 1 3 33.17 2 3 32.17 3 33.45
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