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:

Brain Wave Patterns

Electrical oscillations in the brain that can be measured and are associated with different states of brain function.

Electroencephalography

A non-invasive method used to record the electrical activity of the brain through electrodes placed on the scalp.

CT Scan

A diagnostic medical imaging technique that uses computer-processed combinations of many X-ray measurements taken from different angles to create cross-sectional images of specific areas of a scanned object.

Magnetic Resonance Imaging

A medical imaging technique used to visualize detailed internal structures using powerful magnetic fields and radio waves; commonly known as MRI.