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SECTION 2: Solve the following question to analyze business problems that are related to operations management to make decisions.. (10 MARKS) 1. What is the reliability of the system shown below? (1.5 marks) 0.98 0.90 0.99 0.98 0.99 2. A company manufacturing disk drives for notebook computers wants to determine the MTBF. Recently 10 units were put on test for 60,000 hours. The test results indicated that one failed at 10,000 hours and the other failed at 25,000. What was the failure rate in terms of the following (Write the formulae) (4.5 marks) a. Percent of failures? (0.75 Marks) b. Number of failures per unit-hour. (Use decimal places as per the calculator value) (2.5 Marks) c. MTBF of the computers. (0.75 Marks) d. Number of failure per unit year? (use 4 decimal places) (0.5 Mark) You have just taken a new job as a stores incharge in a furniture manufacturing company. The company has trusted you and wants you to classify the material that they use for producing furnitures, as A, B and C class items. Perfom the ABC analysis and classify the items. (use two place after the decimal point) (4 Marks) Item Value ($/Unit) 111A 121C 212C 145A 261B 223B 241A Annual Volume Demand 900 300 200 150 75 25 10 S $ $ S S S S 85 54 62 55 20 15 10