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a. ratio c. nominal

b. ordinal d. interval

2. The jersey numbers associated with players on a baseball team are examples of scores on a(n)

a. nominal scale. c. interval scaled

b. ratio scale.. d. ordinal scale.

3. Compared to the ordinal level of measurement, the interval level

a. not only indicates the order of categories, but also the exact distance between them.

b. does not provide labeling of each score.

c. starts from a true zero point.

d. only categorizes.

4. Statistics can be used to

a. reduce data to more easily understood descriptive terms.

b. generalize results.

c. determine when an observed difference between two or more groups is the result of

chance, or when it is the result of “real” differences between groups.

d. all of the above

5. Nominal measurement is used primarily to

a. classify or categorize data.

b. rank order data.

c. assign a score.

d. all of the above

6. Ordinal measurement is used primarily to

a. classify or categorize data.

b. rank order data.

c. assign a score.

d. all of the above

What Are the Independent and Dependent Variables?

7. A social researcher is attempting to look at the relationship between race and income.

8. A sociologist tries to do research on religious affiliation and views on premarital sex.

9. Data that are counting numbers are called (discrete, continuous)__________________ data.

10. (Descriptive, Inferential)_____________________statistics involves the collection, organization, summarization and presentation of data.

11. A set of all possible date values for a subject under consideration is called a (sample, population)________________.

12. During the last week, Tony Mason of the San Diego Tigers recorded the following number of hits. (4 points)

Which of the following conclusions can be obtained from purely descriptive statistics and which can be obtained by inferential Statistics?

a) Tony will never have more than 4 hits in a game.

b) Tony had 0 hits on Thursday because he used a bat that belonged to another player.

c) During the last week, Tony averaged 2 hits per game.

13. (3 points) A sporting goods store kept a record of sales of five items for one randomly selected hour during a recent sale. Draw a pie chart for the data showing the sales of each item and analyze the results. (B = baseball, G = golf balls, T = tennis balls, S = soccer balls, F = footballs).

14. (3 points) An insurance company researcher conducted a survey on the number of car thefts in a large city for a period of 30 days last summer. The raw data are shown. Construct a stem and leaf plot.

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