DEPARTMENT OF COMMERCE

SESSION: DECEMBER 2015

CODE & COURSE : PB602- OPERATION MANAGEMENT

DURATION : (untuk kuiz dan ujian sahaja)

QUESTIONS:

1. The following gives the number of demand for the past 12 months in year 2015 at the

IsHaqi Book Store.

Month Demand

(Units)

January 5500

February 6000

March 6300

April 6500

May 6800

June 6500

July 6000

August 5800

September 6500

October 7000

November 7500

December 7200

a). Calculate forecast of demand for January 2016 using:

CLO PLO C P A

2 1 3

i). A-3 months weighted moving average with weights of 0.4, 0.3 and 0.3.

ii). Exponential smoothing with a forecast for December 2015 is 7000 units and α =

0.45.

(7 marks)

b). Construct a regression model for IsHaqi Book Store to evaluate her demand.

(14 marks)

c). Based on the regression model, calculate the demand for January 2016.

(4 marks)

2. Explain the qualitative decision-making approaches below:

a). Jury of executive opinion

b). Delphi method

c). Sales force composite

d). Consumer market survey

(10 marks)

Prepared By: Verified By:

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COURSE LECTURER COURSE COORDINATOR / PROGRAM LEADER