Instruction 15-9
a Study Published in the Australian Journal of Public

question 79

Multiple Choice

Instruction 15-9
A study published in the Australian Journal of Public Health was conducted to determine whether the use of seat belts in motor vehicles depends on ethnic background. A sample of 792 children treated for injuries sustained from motor vehicle accidents was obtained, and each child was classified according to 1. ethnic background (English Speaking Background (ESor Non-English Speaking Background (NESB) ) and 2. seat belt usage (worn or not worn) during the accident. The number of children in each category is given in the table below.
$$\begin{array} { | l | c | c | } \hline & \text { NESB } & \text { ESB } \\\hline \text { Seat belts worn } & 31 & 148 \\\hline \text { Seat belts not worn } & 283 & 330 \\\hline\end{array}$$
-Referring to Instruction 15-9,at 5% level of significance,there is sufficient evidence to conclude that

• A) use of seat belts in motor vehicles depends on ethnic background.
• B) use of seat belts in motor vehicles is related to ethnic background.
• C) use of seat belts in motor vehicles is associated with ethnic background.
• D) All of the above.

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Definitions:

Stressor

Any stimulus or event capable of producing physical or emotional stress.

Acute Stress Disorder

A mental health condition characterized by the development of severe anxiety, dissociation, and other symptoms following a traumatic event.

External Locus

A belief that one's life outcomes are the result of external forces or luck rather than one's own actions.

Catastrophic Stress

Extreme stress that can occur from witnessing or experiencing a disastrous event, leading to significant psychological trauma.