BUAD310
Summer 2007
NAME:
_________________
Solution
______________________
BUAD 310
USC ID:
______________________________________________
Summer 07
Dr. ARIF ANSARI
June 4, 2007
QUIZ # 1
This exam is closed book. 1 Sheets (2 pages) of formula and definitions is allowed. Write
your answers on the exam sheets.
If you need more space, continue your answer on the
back of the page. Make sure you have all 7 pages (7 pages)!
The exam is 75 minutes long.
Total of 100 points.
They are not equally weighted, nor
are they of equal difficulty.
The number of points each question is worth is printed with
the question.
Read the questions carefully.
If you are unsure of the interpretation, come
ask.
Unless otherwise stated in a question, you must show your work to obtain full
credit.
If you can't complete a problem for any reason, explain what concepts are at issue, and
how you would attack the problem.
It is, in any case, a good idea to explain what your
reasoning is in English.
If I can't tell that you understood what you were doing, I can't
give you credit, particularly if you get the wrong numerical answer.
GOOD LUCK!
Part I
MULTIPLE CHOICE
[
5 points each – 30 points
]
1
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
BUAD310
Summer 2007
1.
What would a zscore of 1.2 indicate regarding Florida’s unemployment rate?
a)
Florida’s unemployment rate was 1.2 standard deviations above the
mean for all states.
Answer
b)
Florida’s unemployment rate was 1.2 standard deviations below the mean
for all states.
c)
Florida’s unemployment rate was 1.2 %.
d)
Florida’s unemployment rate was 1.2 % higher than the mean
unemployment rate
.
2.
A random sample of 30 CEO’s is drawn from a population of 500 Technology,
Telecommunication and Internet Company CEO’s.
They selected 10 CEO's from
each of the following categories, Technology, Telecommunication and Internet
companies.
This sampling plan is called:
3.
Determine whether each boldfaced number is a parameter or a statistic. Staff from
a telemarketing company dials residential phone numbers in Los Angles at
Random. Of the first 120 numbers dials
30%
turned out to be unlisted, it is not
surprising because
38%
of all the Los Angeles residential numbers are unlisted.
Another trial of 120 numbers resulted in
41%
unlisted numbers. The three bold
numbers in order are:
This is the end of the preview.
Sign up
to
access the rest of the document.
 Fall '07
 Lv
 Business, Standard Deviation, Mean

Click to edit the document details