20 mcq’s | Business & Finance homework help

1.  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

2.  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

3. 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.

4.  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.

1.  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.

2.  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

3.  A graphical presentation of the relationship between two quantitative variables is
 A. An ogive.
B. A histogram.
C. A bar chart. 
D. A scatter diagram.
E. All of the above.

Use the following information to do the next two problems:
A survey of 800 College seniors produced the following contingency table (cross-tabulation) regarding their undergraduate major and whether or not they planned to go to graduate school.


                              Undergraduate Major





















4.  Of those students that are majoring in Business, what percent plans to go to graduate school?
 A. 27.78%
 B. 8.75%

C. 70%
D. 72.22%
E. none of the above

1.  Among the students who plan to go to graduate school, what percent indicated “Other” majors?  
 A. 15.75%
B. 45%
C. 49.22%

D. 32%
E. none of the above

2.  The measure of central location which is most likely to be influenced by extreme values is
 A. the range
B. the median
C. the mean
D. the mode

E. all of the above

3.  If the mean is 60 and the variance is 324, then the coefficient of variation is
 A. 0.30%
B. 30%
C. 5.4%

D. 54%
E. none of the above.

4.  If the coefficient of variation is 64% and the standard deviation is 8, then the mean is
 A. 12.5 
B. 1.25

C. 8
D. 0.64
E. 0.08

Consider the following to answer the next four questions.
Below is a histogram and the five number summary for salaries (in $) for a sample of U.S. marketing managers. 
 EMBED MtbGraph.Document.15 











1.  The shape of this distribution is
 A. Symmetric
B. Bimodal.
C. Right skewed.
D. Left skewed.

E. Normal.

2.  The most appropriate measure of central tendency for these data is the
 A.  Median.
B.  Mean.

C.  Mode.
D.  Range.
E.  Standard deviation.

3.  The IQR for these data is
 A. $83,060
B. $22,057
C. $69,693

D. $77.020
E. $14,566

4.  Suppose the marketing manager who was earning $129,420 got a raise and is now earning $140,000.  Which of the following statement is true?
 A.  The mean would increase.
B.  The median would increase.

C.  The range would increase.
D.  Both A and C.
E.  All of the above

1. What graph should be used to show the relationship between the parts and the whole?
 A. histogram
B. pie chart
C. bar chart

D. box plot
E. time series plot

2.  A small independent organic food store offers a variety of specialty coffees.  To determine whether price has an impact on sales, the managers kept track of how many pounds of each variety of coffee were sold last month. The data are shown in the table below. 



$ 3.99


$ 5.99


$ 7.00


$ 12.00


$ 4.50


$ 7.50


$ 15.00


$ 10.00


$ 12.50


$ 8.99


The correlation coefficient is
 A. 0.8585
B. 0.9265
C. -0.9265
D. -0.8585

E. none of the above

3.  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

4.  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.
E.  Both B and C.



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