business stats chapter 1

ratio

0; quantitative

11. A person's telephone area code is an example of a(n) _____________ variable. A. Nominative B. Ordinal C. Interval D. Ratio

A. Nominative

16. A _____ variable can have values that indicate into which of several segments of a population it belongs. A. qualitative B. quantitative C. ratio D. interval

A. qualitative

1. Ratio variables have the following characteristics: A. Meaningful order B. An inherently defined zero value C. Categorical in nature D. Predictable

B. An inherently defined zero value

7. An identification of police officers by rank would represent a(n) ____________ level of measurement. A. Nominative B. Ordinal C. Interval D. Ratio

B. Ordinal

15. A _____ variable can have values that are numbers on the real number line. A. qualitative B. quantitative C. random D. nominative

B. quantitative

18. _____ refers to describing the important aspects of a set of measurements. A. Statistical Process Control B. Runs plot C. Descriptive statistics D. Times Series plot

C. Descriptive statistics

5. Temperature (in degrees Fahrenheit) is an example of a(n) ________ variable. A. Nominative B. Ordinal C. Interval D. Ratio

C. Interval

2. Which of the following is a quantitative variable? A. The make of a TV B. A person's gender C. Mileage of a car D. Whether a person is a college graduate E. Whether a person has a charge account

C. Mileage of a car

10. A(n) ___________________ variable is a qualitative variable such that there is no meaningful ordering or ranking of the categories. A. Ratio B. Ordinal C. Nominative D. Interval

C. Nominative

14. A _____ is a subset of the units in a population. A. census B. frame C. sample D. variable

C. sample

20. Which of the following behavior is unethical? A. Development of misleading graphs. B. Inappropriate analysis of the data. C. Biased interpretation of the statistical results. D. All of the above.

D. All of the above.

9. College entrance exam scores, such as SAT scores, are an example of a(n) ________________ variable. A. Ordinal B. Ratio C. Nominative D. Interval

D. Interval

4. The two types of quantitative variables are: A. Ordinal and ratio B. Interval and ordinal C. Nominative and ordinal D. Interval and ratio E. Nominative and interval

D. Interval and ratio

19. The change in daily price of a stock is what type of variable? A. Qualitative B. Ordinal C. Random D. Quantitative

D. Quantitative

6. Weights of items obtained using a well-adjusted scale represents a(n) _____________ level of measurement. A. Nominative B. Ordinal C. Interval D. Ratio

D. Ratio

8. ______________ is the science of using a sample to make generalizations about the important aspects of a population. A. Statistical Process Control B. Descriptive Statistics C. Random sample D. Statistical Inference

D. Statistical Inference

12. Any characteristic of a population unit is a(n): A. Measurement B. Sample C. Observation D. Variable

D. Variable

3. Which of the following is a categorical variable? A. Air Temperature B. Bank Account Balance C. Daily Sales in a Store D. Whether a Person Has a Traffic Violation E. Value of Company Stock

D. Whether a Person Has a Traffic Violation

13. A _____ is an examination of all the units in a population. A. random sampling with replacement B. random sampling without replacement C. statistical inference D. census

D. census

17. A set of existing units we wish to study is called a _____. A. sample B. frame C. census D. population

D. population

interval

not zero; quantitative

ordinal

rank does matter; categorical

nominal

rank does not matter; categorical