SECTION A : 75 MARKS BAHAGIAN A : 75 MARKAH INSTRUCTION: This section consists of THREE (3) structured questions. Answer ALL questions. ARAHAN: Bahagian ini mengandungi TIGA (3) soalan struktur. Jawab SEMUA soalan. QUESTION 1 SOALAN 1 The data below shows QARIZT Confectionary sales and raw material usage records for 2014. Maklumat di bawah menunjukkan jualan dan rekod penggunaan bahan mentah bagi QARIZT Confectionary untuk tahun 2014. Month Bulan Sales (`000 units) Jualan(`000 units) Raw Material (sugar `000 kg) Bahan Mentah (gula `000 kg) January 10 21 February 30 7 Mac 40 14 April 60 18 May 90 24 June 70 20 July 40 12 August 60 11 September 70 20 October 60 16 November 65 18 December 70 25 i. Calculate the forecast of raw material consumption for January 2015 by using Naïve approach. menggunakan Kaedah Pendekatan Naif. [1 mark] [1 markah] 2
ii. iii. the 3 months Moving Average method. menggunakan kaedah Purata Bergerak 3 Bulan. the Weighted Moving Averages of 35%, 30%, 25% and 10%. Use the largest value for the most recent month. menggunakan kaedah Purata Bergerak Wajaran iaitu 35%, 30%,25% dan 10%. Gunakan wajaran yang paling besar untuk bulan terkini. iv. the Exponential Smoothing where α = 0.2. The raw material forecast for December 2014 is 22,000 kg. menggunakan kaedah Pelicinan Eksponen dimana nilai α = 0.2. Bahan mentah yang diunjurkan bagi Disember 2014 adalah 22,000 kg. Calculate the sales forecast from the month of January to February 2015 using the linear regression technique. Kirakan ramalan jualan dari bulan Januari hingga Februari 2015 menggunakan teknik regresi linear. [15 marks] [15 markah] 3
QUESTION 2 There is only one ATM machine in Politeknik Tuanku Syed Sirajuddin Perlis where every customer can use the machine around 3 minutes for withdrawal. There are about 15 customers arrive within one hour to get a service. Calculate: Terdapat hanya sebuah mesin ATM di Politeknik Tuanku Syed Sirajuddin Perlis di mana setiap pelanggan menggunakan mesin kira-kira 3 minit untuk pengeluaran. Terdapat kirakira 15 pelanggan tiba dalam masa satu jam untuk mendapatkan perkhidmatan. Anda perlu mengira: CLO 4 The probability of the machine will be idle. Kebarangkalian mesin tersebut tidak digunakan. The average number of customers queue and withdraw the money. Purata pelanggan beratur dan mengeluarkan wang. (c) The average time of customers queue and withdraw the money. Purata masa yang digunakan oleh pelanggan beratur dan mengeluarkan wang. (d) The average length of queue of the customers to withdraw the money. Purata pelanggan beratur untuk mengeluarkan wang. (e) The average time of the customer spend queuing to withdraw money. Purata masa yang digunakan oleh pelanggan beratur untuk mengeluarkan wang. 4
C1 QUESTION 3 SOALAN 3 List FOUR (4) assumptions when to use the technique of Economic Order Quantity. Senaraikan EMPAT (4) andaian bilakah teknik Pesanan Kuantiti Ekonomi digunakan. Amraza Ltd., is a small manufacturer of laksa paste in Wonderland City. The company s operates 300 days per year. The company received orders for about 16,000 laksa paste per year. The cost of each box is RM80.00, and the carrying cost is 5% of the box s cost. The average ordering cost is RM25.00 per order. On average, it takes about 5 days for an order to arrive at its destination. Amraza Sdn. Bhd adalah sebuah pengilang perencah laksa di Bandar Wonderland. Kilang syarikat ini beroperasi 300 hari setahun. Ianya menerima tempahan kira-kira 16,000 perencah laksa setiap tahun. Kos setiap kotak adalah RM80.00, dan kos menyimpan adalah 5% daripada kos sekotak. Purata kos tempahan adalah sebanyak RM25.00 untuk setiap pesanan. Secara puratanya, penghantaran mengambil masa kira-kira 5 hari untuk sampai ke destinasinya. Calculate the following: Kira yang berikut: (i) The optimal order quantity. Kuantiti pesanan optimal. (ii) The expected number of orders placed each year. Jangkaan bilangan tempahan dibuat setiap tahun. (iii) The expected time between orders. Jangkaan masa di antara tempahan. (iv) The reorder point. Titik pesanan semula. (v) The annual total costs. Jumlah kos tahunan. (5 marks) (5 markah) 5
SECTION B: 25 MARKS BAHAGIAN B : 25 MARKAH INSTRUCTION: This section consists of ONE (1) essay question. Answer ALL questions. ARAHAN: Bahagian ini mengandungi SATU (1) soalan esei. Jawab SEMUA soalan. QUESTION 1 SOALAN 1 CLO1 C2 Explain FIVE (5) objectives of an Operations System. Terangkan LIMA (5) objektif Sistem Operasi. [10 marks] [10 markah] CLO1 C2 Define the terms in operation management process bellow Jelaskan terma di dalam proses pengurusan operasi di bawah i) Input Input ii) Transformation process Proses Transformasi iii) iv) Output Output Environment Feedback Maklumbalas persekitaran SOALAN TAMAT 6