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

question 54

Multiple Choice

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 for Levene's test for homogeneity of variances is

• A) \(H _ { 0 } : { \sigma _ { A } ^ { 2 } } = { \sigma _ { B } ^ { 2 } } = { \sigma _ { C } ^ { 2 } } = { \sigma _ { D } ^ { 2 } }\)
• B) H 0 : \(\mu\) A = \(\mu\) B = \(\mu\) C = \(\mu\) D
• C) H 0 : \(\pi\) A = \(\pi\) B = \(\pi\) C = \(\pi\) D.
• D) H 0 : M A = M B = M C = M D.

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Definitions:

Central Processor

A term relating to the central executive in Baddeley and Hitch’s model of working memory, involved in reasoning, decision making, and updating and manipulating the contents of working memory.

Evolutionary Psychologists

Specialists in a field that applies evolutionary theory to understand the human mind and behavior, focusing on how evolutionary principles explain psychological traits.

Cognitive System

A system of mental processes that includes perception, memory, judgment, and reasoning, responsible for thought and learning.

Evolutionary Forces

Processes such as natural selection, genetic drift, mutation, and gene flow that contribute to the changes in the genetic composition of populations over time.