01. An Internet study asked respondents to indicate their education level on the following scale: Less than High School, High School, Some College, College +. Which of the following statements is (are) true?
A. Education level is a categorical variable
.? B. Education level is nominal scaled.
C. Education level is ordinal scaled.
D. Both A and B? or
E. Both A and C
Consider the following to answer the next two questions:
Consumer Reports Health routinely compares drugs in terms of effectiveness and safety. In summer 2008 they reviewed drugs used to treat arthritis. Among the information reported was convenience of use (how many pills required each day) and possible side effects (e.g., dizziness, stomach upset).
02. In the Consumer Reports Health study on arthritis drugs, possible side effects is what kind of variable?
A. Quantitative.
B. Categorical.
C. Nominal.
D. Both A and C.? or
E. Both B and C.
03. The Consumer Reports Health study on arthritis drugs also took into consideration cost. Cost is
A. is a nominal variable.
B. is a categorical variable.
C. is a quantitative variable.
D. is an ordinal variable.? or
E. is an irrelevant variable.
04. Which of the following is (are) based on cross sectional data?
A. Company quarterly profits.
B. Percentage of American adults who work full time.
C. Historical closing stock prices
D. All of the above.?E. None of the above.
05. Which of the following is (are) time series data?
A. Weekly receipts at a clothing boutique.
B. Monthly demand for an automotive part.
C. Quarterly sales of automobiles.
D. All of the above.
E. None of the above
06. Temperature measured in degrees Centigrade or Fahrenheit is an example of a variable that uses
A. the ratio scale
B. the interval scale
C. the ordinal scale
D. the nominal scale
E. all of the above
07. Statistical studies in which researchers do not control variables of interest are
A. Experimental studies.
B. Uncontrolled experimental studies.
C. Arbitrary studies.
D. Observational studies.
E. None of the above.
08. Statistical studies in which researchers control variables of interest are
A. Experimental studies.
B. Control observational studies.
C. Non-experimental studies.
D. Observational studies.
E. None of the above.
09. The set of all elements of interest in a particular study is
A. The sample.
B. The population.?C. The variable.?D. Descriptive statistics.?E. None of the above.
10. Which of the following survey questions is a loaded question?
A. Given the prevalence of identity theft, are you reluctant to provide credit card information online?
B. Are you confident that any information you provide online is secure?
C. Are you concerned about the security of online transactions??D. Both A and B?E. Both B and C