1. a Statistic Is a Measure That Measures a Population Characteristic. T F

True or False

1. A statistic is a measure that measures a population characteristic. T F

2. A sample is a subset of a population. T F

3. It is impossible for the Census Bureau to obtain all the census data about the population of the United States. T F

4. Inferential statistics involves using a population to draw a conclusion about a corresponding sample. T F

5. A population is the collection of some units of interest. T F

Determine the data set is a population (P) or a sample (S).

6. The age of each member of the House of Representatives. P S

7. The height of every fourth person entering an amusement park. P S

8. A survey of 500 spectators of a stadium with 42000 spectators. P S

9. The number of televisions in each U.S. household. P S

10. The cholesterol level of 20 patients in a hospital with 100 patients. P S

Identify populations and samples

11. A survey of 1000 adults in the United States found that 12% prefer to take their vacation during the winter months.

12. A study of 33043 infants in Italy was conducted to find a link between a heart rhythm abnormality and sudden infant death syndrome.

Distinguishing between a parameter (P) and a statistic (S)

13. In a survey of a sample of high school students, 43% said their mother has taught them the most about managing money. P S

14. As of January 2007, 44% of the governors of the 50 states in the United States are Republicans. P S

15. In a recent year, the interest category for 12% of all the new magazines was sports.

P S

16. In a recent year, the average math scores for all graduates on the ACT was 21.1.

P S

17. In a survey of a sample of computer users, 8% said their computer had a malfunction that needed to be repaired by a service technician. P S

Determine whether that data are quantitative (A) or qualitative (L).

18. The telephone number in a telephone directory A L

19. The daily high temperatures for the month of July A L

20. The lengths of songs on an MP3 player A L

21. The player numbers for a soccer team A L

22. Measure of diastolic blood pressure A L

Identifying sampling techniques

23. For quality assurance, every twentieth engine part is selected from an assembly line and tested for durability.

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