# Chapter 1 Review

```Chapter 1 Review
Test Wednesday Aug. 18
Question

Explain the difference between a sample
and a population.

A population is the collection of all
elements in a population. A sample is a
subset of the elements in the population.
Question

There is a relationship between smoking
cigarettes and getting emphysema. Does
this statement describe descriptive
statistics or inferential statistics?

Inferential statistics
Question

Classify the colors of automobiles on a
used car lot as qualitative data or
quantitative data.

Qualitative Data
Question

Classify the number of complaint letters
received by the United States Postal
Service in a given day as qualitative or
quantitative data.

Quantitative Data
Question

Identify the level of measurement for data
that can be classified according to color.

Nominal
Question

Identify the level of measurement for data
that are the number of milligrams of tar in
45 cigarettes.

Ratio
Question

Identify the level of measurement for data
that can be classified by marriage status
(married, single, or divorced).

Nominal
Question

Identify the level of measurement for data
that are a list of 1235 social security
numbers.

Nominal
Question

Identify the level of measurement for data
that are the ratings of a movie ranging
from poor to good to excellent.

Ordinal
Question

Identify the level of measurement for data
(A, B, C, D, and F) for students in a
statistics class.

Ordinal
Question

Identify the level of measurement for data
that are the annual salaries of all teachers
in California.

Ratio
Question

Identify the level of measurement for data
that are the amount of fat (in grams) in 24

Ratio
Question

Identify the level of measurement for data
that are the years the summer Olympics
were held in the United States.

Interval
Question

The average daily temperature (in degrees
Fahrenheit) on five randomly selected
days are given below. Identify the level of
measurement.

28 31 27 32 28

Interval
Question

Which method of data collection would you
use to collect data for a study where a
drug was given to 10 patients and a
placebo to another group of 10 patients to
determine if the drug has an effect on a
patient's illness?

Perform an experiment
Question

Thirty-five sophomores, 26 juniors and 41
seniors are randomly selected from 523
sophomores, 365 juniors and 431 seniors
at a certain high school. Identify which
sampling technique is used.

Stratified
Question

At a local community college, five statistics
classes are randomly selected and all of
the students from each class are
interviewed. Identify which sampling
technique is used.

Cluster
Question

A researcher randomly selects and
interviews fifty male and fifty female
teachers. Identify which sampling
technique is used.

Stratified
Question

In a recent television survey, participants
question "Are you in favor of the death
penalty?" Six thousand five hundred
responded "yes" while 4800 responded
"no". There was a fifty-cent charge for the
call. Identify which sampling technique
was used.

Convenience
Question

A lobbyist for a major airspace firm
assigns a number to each legislator and
then uses a computer to randomly
generate ten numbers. The lobbyist
contacts the legislators corresponding to
these numbers. Identify which sampling
technique is used.

Simple random sample (SRS)
Question

A sample consists of every 25th student
from a group of 1000 students. Identify
which sampling technique is used.

Systematic
Question

A market researcher randomly selects 200
drivers under 30 years of age and 200
drivers over 30 years of age. Identify
which sampling technique is used.

Stratified
```
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