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

question 147

True/False

TABLE 11-6
As part of an evaluation program, a sporting goods retailer wanted to compare the downhill coasting speeds of 4 brands of bicycles. She took 3 of each brand and determined their maximum downhill speeds. The results are presented in miles per hour in the table below.
$$\begin{array} { c c c c c } \hline \text { Trial } & \text { Barth } & \text { Tornado } & \text { Reiser } & \text { Shaw } \\\hline 1 & 43 & 37 & 41 & 43 \\2 & 46 & 38 & 45 & 45 \\3 & 43 & 39 & 42 & 46\end{array}$$
-Referring to Table 11-6, based on the Tukey-Kramer procedure with an overall level of significance of 0.05, the retailer would decide that there is a significant difference between all pairs of mean speeds.

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Definitions:

External Oblique

A muscle in the abdomen that helps rotate the trunk and flex the vertebral column.

Scapula

The flat, triangular bone located in the upper back, commonly known as the shoulder blade.

Rhomboid Major

A skeletal muscle located in the upper back that connects the spine to the shoulder blade, aiding in retraction of the scapula.

Teres Minor

A small muscle of the rotator cuff that assists in the rotation and stabilization of the shoulder joint.