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

question 116

Short Answer

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,the null hypothesis that the average downhill coasting speeds of the four brands of bicycles are equal will be rejected at a level of significance of 0.05 if the value of the test statistic is greater than ________.

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Definitions:

Nominal Data

Data categorized into discrete groups or categories that cannot be ordered or ranked.

Interval Variable

A type of quantitative variable that exhibits ordered relationships with meaningful, equal distances between measurements but no true zero point.

Nominal Variable

A nominal variable is a type of categorical variable for which there is no natural ordering among the categories.

Nominal Data

Data categorized into discrete groups or categories without any natural order or ranking among them, such as gender or race.