Essentials of Statistics for Business and Economics, Revised, Anderson -

CHAPTER 1—DATA AND STATISTICS


MULTIPLE CHOICE

1. Methods for developing useful decision-making information from large data bases is known as
a. data manipulation
b. data monitoring
c. data base conversion
d. data mining

ANS: D PTS: 1 TOP: Descriptive Statistics

2. The process of capturing, storing, and maintaining data is known as
a. data manipulation
b. data monitoring
c. data warehousing
d. category analysis

ANS: C PTS: 1 TOP: Descriptive Statistics

3. The subject of data mining deals with
a. methods for developing useful decision-making information from large data bases
b. keeping data secure so that unauthorized individuals cannot access the data
c. computational procedure for data analysis
d. computing the average for data

ANS: A PTS: 1 TOP: Descriptive Statistics

4. In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an
example of the
a. ordinal scale
b. nominal scale
c. ratio scale
d. interval scale

ANS: B PTS: 1 TOP: Descriptive Statistics

5. The nominal scale of measurement has the properties of the
a. ordinal scale
b. only interval scale
c. ratio scale
d. None of these alternatives is correct.

ANS: D PTS: 1 TOP: Descriptive Statistics

, 6. The scale of measurement that is used to rank order the observation for a variable is called the
a. ratio scale
b. ordinal scale
c. nominal scale
d. interval scale

ANS: B PTS: 1 TOP: Descriptive Statistics

7. Some hotels ask their guests to rate the hotel's services as excellent, very good, good, and poor.
This is an example of the
a. ordinal scale
b. ratio scale
c. nominal scale
d. interval scale

ANS: A PTS: 1 TOP: Descriptive Statistics

8. The ordinal scale of measurement has the properties of the
a. ratio scale
b. interval scale
c. nominal scale
d. ratio and interval scales

ANS: C PTS: 1 TOP: Descriptive Statistics

9. The ratio scale of measurement has the properties of
a. only the ordinal scale
b. only the nominal scale
c. the rank scale
d. the interval scale

ANS: D PTS: 1 TOP: Descriptive Statistics

10. Temperature is an example of a variable that uses
a. the ratio scale
b. the interval scale
c. the ordinal scale
d. either the ratio or the ordinal scale

ANS: B PTS: 1 TOP: Descriptive Statistics

11. The interval scale of measurement has the properties of the
a. ratio and nominal scales
b. ratio and ordinal scales
c. ratio scale
d. None of these alternatives is correct.

, ANS: D PTS: 1 TOP: Descriptive Statistics

12. Arithmetic operations are inappropriate for
a. the ratio scale
b. the interval scale
c. both the ratio and interval scales
d. the nominal scale

ANS: D PTS: 1 TOP: Descriptive Statistics

13. Income is an example of a variable that uses the
a. ratio scale
b. interval scale
c. nominal scale
d. ordinal scale

ANS: A PTS: 1 TOP: Descriptive Statistics

14. Data obtained from a nominal scale
a. must be alphabetic
b. can be either numeric or nonnumeric
c. must be numeric
d. must rank order the data

ANS: B PTS: 1 TOP: Descriptive Statistics

15. The scale of measurement that has an inherent zero value defined is the
a. ratio scale
b. nominal scale
c. ordinal scale
d. interval scale

ANS: A PTS: 1 TOP: Descriptive Statistics

16. Arithmetic operations are appropriate for
a. only the ratio scale
b. only the interval scale
c. the nominal scale
d. None of these alternatives is correct.

ANS: D PTS: 1 TOP: Descriptive Statistics

17. Quantitative data refers to data obtained with a(n)
a. ordinal scale
b. nominal scale

, c. either interval or ratio scale
d. only interval scale

ANS: C PTS: 1 TOP: Descriptive Statistics

18. Data
a. are always be numeric
b. are always nonnumeric
c. are the raw material of statistics
d. None of these alternatives is correct.

ANS: C PTS: 1 TOP: Descriptive Statistics

19. The entities on which data are collected are
a. elements
b. populations
c. samples
d. None of these alternatives is correct.

ANS: A PTS: 1 TOP: Descriptive Statistics

20. The set of measurements collected for a particular element is (are) called
a. variables
b. observations
c. samples
d. None of these alternatives is correct.

ANS: B PTS: 1 TOP: Descriptive Statistics

21. A characteristic of interest for the elements is called a(n)
a. sample
b. data set
c. variable
d. None of these alternatives is correct.

ANS: C PTS: 1 TOP: Descriptive Statistics

22. All the data collected in a particular study are referred to as the
a. inference
b. variable
c. data set
d. None of these alternatives is correct.

ANS: C PTS: 1 TOP: Descriptive Statistics

23. Another name for "observations" is