ch 13. 3: 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—$x_1$, amount of gasoline additive RST (0, 1, or 2 units), and $x_2$, 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 $x_1$ and $x_2$ used in the experiment, along with the corresponding values of $y$, are given below.| RST Units $(x_1)$ | XST Units $(x_2)$ | Gas Mileage $(y, \text{mpg})$ ||---------------------|---------------------|-------------------------------|| 0 | 0 | 27.43 || 0 | 0 | 28.07 || 0 | 0 | 28.46 || 0 | 0 | 29.38 || 0 | 2 | 28.10 || 0 | 2 | 28.14 || 0 | 2 | 29.43 || 0 | 2 | 29.50 || 1 | 0 | 32.43 || 1 | 0 | 33.95 || 1 | 0 | 34.77 || 1 | 0 | 32.68 || 1 | 1 | 33.84 || 1 | 1 | 34.64 || 1 | 1 | 34.46 || 1 | 1 | 35.96 || 1 | 2 | 35.96 || 1 | 2 | 33.79 || 2 | 1 | 34.57 || 2 | 2

Regression analysis output is attached above, Regression equation is Y^ =28.2528 + 2.7536X1…

Answered: United Oil Company is attempting to…

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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