THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 40

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A study was conducted to determine whether the use of seat belts in vehicles depends on ethnic status in Detroit.A sample of 1,000 people treated for injuries sustained from vehicle accidents was obtained,and each person was classified according to (1)ethnic status (African American or non-African American)and (2)set belt usage (worn or not worn)during the accident.The data are shown in the table below.
Ethnic Status

-A recent survey of 192 college students asked whether they participated in extracurricular activities.The following data was collected:

Is there any evidence that student participation is related to year in college?

---

Definitions:

Cerebral Cortex

The outer layer of the cerebrum in the brain, playing a key role in memory, attention, perception, cognition, awareness, thought, language, and consciousness.

MRI Scans

A medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body.

Longitudinal Study

A study in which people (or animals) are followed and periodically reassessed over a period of time.

Sociobiologists

Scientists who study the biological basis of social behavior in animals and humans.