Three Different Sections of the Same Interstate Highway,with Roughly Equal

question 36

Essay

Three different sections of the same Interstate highway,with roughly equal traffic volumes,have been patrolled by the State Police at different levels of intensity for the past six months.The posted speed limit is 55 and the speeds of a random samples of motorists have been registered for each of the three sections.Is there any statistically significant difference in the speeds? Use the five step model as a guide and write a sentence or two of interpretation for your results.
$\begin{array}{lll}\text { Lightly } & \text { Moderately } & \text { Heavily } \\\underline{\text { Patrolled } }&\underline{\text { Patrolled }} & \underline{\text { Patrolled }} \\ 55 & 57 &50 \\48 & 58 & 51 \\58 & 58 & 60 \\65 & 55 & 58 \\72 & 55 & 55 \\67 & 59 & 52 \\54 & 58 & 55 \\65 & 54 & 53\end{array}$

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Definitions:

Dendrites

Branch-like extensions of neurons that receive electrochemical signals from other neurons.

Corpus Callosum

A large band of neural fibers that connects the left and right hemispheres of the brain, facilitating communication and coordination between them.

Reticular Formation

A network of neurons located in the brainstem that plays a key role in controlling arousal and consciousness.

Somatosensory Cortex

The section of cortex in which sensory stimulation is projected. It lies just behind the central fissure in the parietal lobe.