TABLE 12-8 A Study Published in the American Journal of Public Health

question 120

Multiple Choice

TABLE 12-8
A study published in the American Journal of Public Health was conducted to determine whether the use of seat belts in motor vehicles in San Diego County depends on ethnic status. A sample of 792 children treated for injuries sustained from motor vehicle accidents was obtained, and each child was classified according to (1) ethnic status (Hispanic or non-Hispanic) 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.

-Referring to Table 12-8, at 5% level of significance, there is sufficient evidence to conclude that

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

---

Definitions:

Promotion

Marketing activities aimed at increasing awareness of a product or brand, persuading people to choose it over competitors' offerings, and encouraging purchase.

Noncumulative Quantity Discount

A pricing strategy where a discount is offered on a single purchase based on the quantity ordered, without considering past purchases.

Cumulative Quantity Discount

A pricing strategy where the price per unit decreases as the total quantity purchased by a customer over time increases.

Quantity Discount

A pricing strategy that offers a reduced price per unit when products are purchased in larger quantities, encouraging bulk buying.