University of North Carolina, Greensboro

ECO 25

TEST BANK Ch 1

CHAPTER 1-DATA AND STATISTICS

MULTIPLE CHOICE

1)In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of the

1. 1. ordinal scale
   2. nominal scale
   3. ratio scale
   4. interval scale

2. Some hotels ask their guests to rate the hotel's services as excellent, very good, good, and poor. This is an example of the

2. 1. ordinal scale
   2. ratio scale
   3. nominal scale
   4. interval scale
3. Income is an example of a variable that uses the
   1. ratio scale
   2. interval scale
   3. nominal scale
   4. ordinal scale
4. The scale of measurement that has an inherent zero value defined is the
   1. ratio scale
   2. nominal scale
   3. ordinal scale
   4. interval scale
5. Data
   1. are always be numeric
   2. are always nonnumeric
   3. are the raw material of statistics
   4. None of these alternatives is correct.

6. The entities on which data are collected are
   1. elements
   2. populations
   3. samples
   4. None of these alternatives is correct.

7. The set of measurements collected for a particular element is (are) called
   1. variables
   2. observations
   3. samples
   4. None of these alternatives is correct.

8. A characteristic of interest for the elements is called a(n)
   1. sample
   2. data set
   3. variable
   4. None of these alternatives is correct.

9. Quantitative data
   1. are always nonnumeric
   2. may be either numeric or nonnumeric
   3. are always numeric
   4. None of these alternatives is correct.

10. Social security numbers consist of numeric values. Therefore, social security is an example of
    1. a quantitative variable
    2. either a quantitative or a qualitative variable
    3. an exchange variable
    4. a qualitative variable
11. A portion of the population selected to represent the population is called
    1. statistical inference
    2. descriptive statistics

1. 3. a census
   4. a sample

15. In a sample of 800 students in a university, 240, or 30%, are Business majors. The 30% is an example of
    1. a sample
    2. a population
    3. statistical inference
    4. descriptive statistics

16. Data collected at the same, or approximately the same, point in time are
    1. time series data
    2. approximate time series data
    3. crossectional data
    4. approximate data

17. Data collected over several time periods are
    1. time series data
    2. time controlled data
    3. crossectional data
    4. time crossectional data

Exhibit 1-1

Part of the data bank of a corporation is shown below.

18. Refer to Exhibit 1-1. Employee Number is an example of                 data.
    1. Nominal
    2. Ordinal
    3. Interval
    4. Ratio

19. Refer to Exhibit 1-1. Gender is an example of                 data.
    1. nominal
    2. ordinal
    3. interval
    4. ratio

20. Refer to Exhibit 1-1. Years of Experience is an example of                data.
    1. nominal
    2. ordinal
    3. interval
    4. ratio

21. Refer to Exhibit 1-1. Employee Rank is an example of                data.
    1. nominal
    2. ordinal
    3. interval
    4. ratio
22. Refer to Exhibit 1-1. Employee Rank is an example of                 data.
    1. nominal
    2. ordinal
    3. interval