August 1997
QT211: QUANTITATIVE ANALYSIS FOR MANAGEMENT

QUESTION 3

Total Marks: 20 Marks

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SUGGESTED SOLUTIONS
for Question 3

3. (a) Discuss the effectiveness of simulation as a business tool. [5]
(b) A retailer has placed in order for 25 units of a certain item to be delivered daily.The estimated sales for each day are expected to follow the probability distribution given below:
Demand Probability
10 0.07
20 0.13
30 0.39
40 0.16
50 0.08
60 0.17
You are also provided with the following information:
each unit cost $20 and is sold for $26
There is a loss of goodwill of $6 per unit (this is the loss suffered if there is no stock to satisfy a particular customer)
the retailer does not have any storage facilities so that any units remaining unsold at the end of the day are thrown away.
(i) What do the probability values listed above indicate? [2]
(ii) Explain how pseudo-random numbers can be assigned to each level of demand, and complete the assignment of pseudo-random numbers to the table given above. [5]
(iii) Given the stream of random digits 65065834589678832548, simulate demand for this business over a ten-day period. [3]
(c) Use your simulation to deduce whether the business is likely to be profitable. [5]