Exercises on Data Types & Sampling Techniques

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1. A list of your classes Social Security Numbers.

Nominal.
Ordinal.
Interval.
Ratio.


2. The colors of sweaters sold at a local department store.

Nominal.
Ordinal.
Interval.
Ratio.


3. The temperature at Yankee Stadium, at game time, during the World Series.

Nominal.
Ordinal.
Interval.
Ratio.


4. Consumer Reports magazine rates a product as poor, fair, good, better, best.

Nominal.
Ordinal.
Interval.
Ratio.


5. The salaries of instructors at your local community college.

Nominal.
Ordinal.
Interval.
Ratio.


6. The weights of pumpkins at the State Fair.

Nominal.
Ordinal.
Interval.
Ratio.


7. The letter grades you receive in this course.

Nominal.
Ordinal.
Interval.
Ratio.


In questions 8 - 12, determine the sampling technique used.

8. Readers of TV Guide send in a questionaire about their favorite television shows.

Systematic.
Cluster.
Simple Random.
Convenience.
Stratified.


9. Your instructor divides the class into two groups, male and female, and randomly selects 5 people from each group.

Systematic.
Cluster.
Simple Random.
Convenience.
Stratified.


10. Randomly selecting 5 key voting precincts here in Baltimore and surveying every person in each of the 5 precincts.

Systematic.
Cluster.
Simple Random.
Convenience.
Stratified.


11. Throwing the names of all major league baseball players into a hat, tossing the names around to mix them up and then selecting 50 names.

Systematic.
Cluster.
Simple Random.
Convenience.
Stratified.


12. Selecting every 20th can of soda off the assembly line.

Systematic.
Cluster.
Simple Random.
Convenience.
Stratified.