Use the Data in the Given Table and the Corresponding

question 51

Essay

Use the data in the given table and the corresponding Minitab display to test the hypothesis. The following table shows the mileage for four different cars and three different brands of gas. Assuming no effect from the interaction between car and brand of gas, test the claim that the four cars have the same mean mileage. Use a 0.05 significance level. $$\begin{array}{l}\begin{array} { l | l l l } & \text { Brand 1 } & \text { Brand 2 } & \text { Brand 3 } \\\hline \text { Car 1 } & 22.4 & 25.2 & 24.3 \\\text { Car 2 } & 19 & 18.6 & 19.8 \\\text { Car 3 } & 24.6 & 25 & 25.4 \\\text { Car 4 } & 23.5 & 23.6 & 24.1\end{array}\\\begin{array} { l r r r r c } \text { Source } & D F & S S & M S & F & p \\\text { Car } & 3 & 61.249 & 20.416 & 39.033 & 0.000249 \\\text { Gas } & 2 & 2.222 & 1.111 & 2.124 & 0.200726 \\\text { Error } & 6 & 3.138 & 0.523 & & \\\text { Total } & 11 & 66.609 & & &\end{array}\end{array}$$

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Definitions:

Business Perspective

This refers to the viewpoint or approach to decision-making undertaken from the standpoint of business strategy and outcomes.

Perfectly Competitive Labor Market

An idealized labor market scenario where there are many employers and employees, no single entity can influence wages, and all workers are fully informed and mobile.

Unionized Firms

Companies where a majority of workers are members of a labor union, which represents them in negotiations with management.

Employment Growth

An increase in the number of jobs available within a certain industry, sector, or economy.