UNIT 1 REVIEW: DESCRIPTIVE STATISTICS

One hundred student athletes are gathered to measure heights.

This is an example of a:

• statistic

• sample

• parameter

• population

The average height of one hundred student athletes is computed to be 68.2 inches.

This is an example of a:

• statistic

• sample

• parameter

• population

The salaries of all Virginia Beach teachers are recorded.

This is an example of a:

• statistic

• sample

• parameter

• population

The average salary of all Virginia Beach teachers is calculated to be $57,452.

This is an example of a:

• statistic

• sample

• parameter

• population

At Old Dominion University all students from 3 randomly selected dorm buildings are questioned to measure satisfaction with dorm life.

This is an example of a:

• cluster sample

• convenience sample

• systematic sample

• stratified sample

At Christopher Newport University, students entering the dining halls are questioned to measure student satisfaction with nutritional offerings.

This is an example of a:

• cluster sample

• convenience sample

• systematic sample

• stratified sample

To measure student satisfaction, Howard University selects students to participate in a survey by selecting names corresponding to every 100th student ID number.

This is an example of a:

• cluster sample

• convenience sample

• systematic sample

• stratified sample

At William and Mary, 100 freshmen, 100 sophomores, 100 juniors, and 100 seniors are randomly selected to be surveyed about student satisfaction.

This is an example of a:

• cluster sample

• convenience sample

• systematic sample

• stratified sample

Ms. Marzzarella, a math teacher, wants to know if students are interested in starting a math club at First Colonial High School. According to simple random sampling principles, which of these is the best method to survey students?

• Ask 50 randomly selected students from First Colonial.

• Ask 50 randomly selected students from her class.

• Ask 50 students who attend after school tutoring.

• Ask 50 AP Calculus students

A numerical value used as a summary measure (calculated value) for a sample, such as a sample mean, is known as as a:

• sample parameter

• sample statistic

• population parameter

• population mean