Instruction 11-6
as Part of an Evaluation Program,a Sporting Goods

question 3

Short Answer

Instruction 11-6
As part of an evaluation program,a sporting goods retailer wanted to compare the downhill coasting speeds of four brands of bicycles.She recorded three trials of each brand and determined their maximum downhill speeds.The results are presented in kilometres per hour in the table below.
$\begin{array}{lcccc}\text { Trial } & \frac{\text { Barth }}{} & \frac{\text { Tomado }}{} & \frac{\text { Reiser }}{} & \frac{\text { Shaw }}{} \\1 & 43 & 37 & 41 & 43 \\2 & 46 & 38 & 45 & 45 \\3 & 43 & 39 & 42 & 46\end{array}$
-Referring to Instruction 11-6,in testing the null hypothesis that the average downhill coasting speeds of the four brands of bicycles are equal,the value of the test statistic is ________.

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Definitions:

Hippocampus

A region of the brain that is associated with memory formation, spatial navigation, and emotional regulation.

Thalamus

The brain's main relay station for sensory signals, excluding smell, filtering information to the cerebral cortex for further processing and interpretation.

Medulla

The innermost part of an organ or structure, especially the medulla oblongata in the brain, involved in regulating vital body functions.

Hypothalamus

A small, crucial part of the brain located below the thalamus, responsible for hormonal control and regulation of essential bodily functions like temperature, hunger, and thirst.