A File Has Data on 600 College Students

question 13

Short Answer

A file has data on 600 college students. One of the variables in the data file is the brand of the first car the student owned. 300 students had never owned a car and, thus, had missing data on this variable. Of the 300 students who had owned a car, 30 said Ford was the brand of their first car. As these terms are used in an SPSS frequency table,
A) What "percent" first owned a Ford? __________
B) What "valid percent" first owned a Ford? __________

• A) What "percent" first owned a Ford? __________
• B) What "valid percent" first owned a Ford? __________

---

Definitions:

Brachial Plexus

A network of nerve fibers, running from the spine, formed by the ventral rami of the lower four cervical nerves and the first thoracic nerve that supplies the arm and hand.

Median Nerve

A major nerve in the human body extending down the arm, through the carpal tunnel in the wrist, to the hand, responsible for sensation and movement.

Parasympathetic Division

A branch of the autonomic nervous system that conserves energy as it slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles.

Autonomic Nervous System

The part of the nervous system responsible for control of the bodily functions not consciously directed, such as breathing, the heartbeat, and digestive processes.