课业设计2(商业决策)

北京邮电大学世纪学院-国际学院
Century College, Beijing University of Posts and Telecommunications (International Institute)
NOTES TO STUDENTS
1. This is a group work based assignment. Each member need to contribute to the
assignment independently.
2. please use the suggested format:
-words: minimum 1,000
-font type: Times New Roman
-font size: 12
- 1.5 space
3. Take great care that if you use other people’s work or ideas in your assignment, you
properly reference them in your text and any bibliography.
4. Check carefully the submission date and the instructions given with the assignment.
Late assignments will not be accepted.
5. If you are unable to hand in your assignment on time and have valid reasons such
as illness, you may apply (in writing) for an extension.
6. Failure to achieve a PASS grade will results in a REFERRAL grade being given.
7. NOTE: if you are caught plagiarising, you could have your grade reduced to
zero, or at worst, you could be excluded from the course.
Assignment 2 –Multiple Regression Analysis
Handout date: 13th Dec, 2011
Hand in date: 29th Dec, 2011
Background information
One consulting firm which has offered a wide range of specialist consultancy advice to various industries faces three different missions clients ask to complete.
First, some school managers want to determine the factors influencing the salaries. The median starting salary for new law school graduates is determined by：
where LSAT is median LSAT score for the graduating class, GPA is the median college GPA for the class, libvol is the number of volumes in the law school library, cost is the annual cost of attending law school, and rank is a law school ranking (with rank=1 being the best).
The file LAWSCH85.RAW contains data on median starting salaries for law school graduates. One of the key explanatory variables is the rank of the law school.
Secondly, a company has estimated the annual demand for an item of stock
to be 48,000 units. The purchase price is £2 a unit, with a 2% discount for orders of 12,000 units or more. The annual cost of holding one unit of stock is 15 pence. The cost of an order averages £100.
Thirdly, one firm uses a discount rate of 12% for all its investment projects.
(i) Interpret the methods of collected data and design the plan of designing
the questionnaire concerning the starting salaries for law school
graduates
<=0
(ii) Explain why we expect
5
(iii) Calculate the coefficient of starting salary and GPA.
(iv) What signs to you expect for the other slope parameters? Justify your answers.
(This provides evidence for outcome 1 and 2 – assessment criteria 1.a，1.b, 1.c， and 2.c)
Task 2
(i) Using the data in LAWSCH85.RAW, the estimated equation is
(ii) Interpret the coefficient on the variable log(libvol).
(iii) Would you say it is better to attend a higher ranked law school? Forecast the difference in the starting salary of various ranks?
(This provides evidence for outcome 3 and 4 – assessment criteria 3.b ，
3.d，
4.a and 4.d)
Task 3
(i) Determine the economic order quantity ignoring the discount. How often
(ii) should orders be placed and what will be annual cost of holding stock?
(ii) Determine whether the discount should be obtained by ordering 12,000 units
(This provides evidence for outcome 4 – assessment criteria 4.b and 4.c)
Task 4
(ii) Calculate the internal rates of return for the projects.
(This provides evidence for outcome 4 – assessment criteria 4.e)
NOTES TO STUDENTS
➢Use at least two indicative characterics to achieve M or D.
➢Complete the title page and sign the statement of authenticity.
➢Ensure that you give yourself enough time to complete the assignment by the due date.
➢Do not leave things such as printing to the last minute – excuses of this nature will not be accepted for failure to hand-in the work on time.
➢You must take responsibility for managing your own time effectively.
Assessment criteria/grade descriptor coverage。