Instruction 11-3
as Part of an Evaluation Program, a Sporting

question 106

True/False

Instruction 11-3
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.
$$\begin{array} { | l | l | l | l | l | } \hline \text { Trial } & \text { Barth } & \text { Tornado } & \text { Reiser } & \text { Shaw } \\\hline 1 & 43 & 37 & 41 & 43 \\\hline 2 & 46 & 38 & 45 & 45 \\\hline 3 & 43 & 39 & 42 & 46 \\\hline\end{array}$$
-Referring to Instruction 11-3,based on the Tukey-Kramer procedure with an overall level of significance of 0.05,the retailer would decide that the three means other than the mean for Tornado are not significantly different from each other.

---

Definitions:

PET Scan

A diagnostic imaging test using a radioactive substance to show how your tissues and organs are functioning.

Hippocampus

A sector of the brain connected with the development, arrangement, and preservation of memory.

Alzheimer's

A progressive neurodegenerative disorder characterized by memory loss, cognitive decline, and personality changes, leading to severe dementia.

Thalamus

An essential brain structure that acts as a relay station for most sensory and motor signals to the cerebral cortex.