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Operations Management
Principles of Operations Management [EXP-59006]
196 SOLVED PROBLEMS
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Question: 15.SP.2
A defense contractor in Dallas has six jobs awaiting processing. Processing time and due dates are given in the table. Assume that jobs arrive in the order shown. Set the processing sequence according to FCFS and evaluate. Start date is day 1.
Verified Answer:
FCFS has the sequence A–B–C–D–E–F. JOB SEQUENC...
Question: 13.SP.2
A Dover, Delaware, plant has developed the accompanying supply, demand, cost, and inventory data. The firm has a constant workforce and meets all its demand. Allocate production capacity to satisfy demand at a minimum cost. What is the cost of this plan? Supply Capacity Available (units)
Verified Answer:
Cost of plan: Period 1: 50($0) + 300($50) + 50($65...
Question: 6.EX.2
A FLOWCHART FOR HOSPITAL MRI SERVICE. Arnold Palmer Hospital has undertaken a series of process improvement initiatives. One of these is to make the MRI service efficient for patient, doctor, and hospital. The first step, the administrator believes, is to develop a flowchart for this process.
Verified Answer:
SOLUTION
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Here i...
Question: 11.S11.4
A French car company ships 120,000 cars annually to the United Kingdom. The current method of shipment uses ferries to cross the English Channel and averages 10 days. The firm is considering shipping by rail through the Chunnel (the tunnel that goes through the English Channel) instead. That
Verified Answer:
Daily cost of holding the product = (.25 × $20,000...
Question: 6.S6.1
A manufacturer of precision machine parts produces round shafts for use in the construction of drill presses. The average diameter of a shaft is .56 inch. Inspection samples contain 6 shafts each. The average range of these samples is .006 inch. Determine the upper and lower x control chart limits.
Verified Answer:
The mean factor
A_2
from Table S6.1...
Question: 6.EX.1
A PARETO CHART AT THE HARD ROCK HOTEL. The Hard Rock Hotel in Bali has just collected the data from 75 complaint calls to the general manager during the month of October. The manager wants to prepare an analysis of the complaints. The data provided are room service, 54; check-in delays, 12; hours
Verified Answer:
SOLUTION
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The Pa...
Question: 12.EX.8
A PRODUCTION ORDER QUANTITY MODEL. Nathan Manufacturing, Inc., makes and sells specialty hubcaps for the retail automobile aftermarket. Nathan’s forecast for its wire-wheel hubcap is 1,000 units next year, with an average daily demand of 4 units. However, the production process is most efficient at
Verified Answer:
SOLUTION
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[latex...
Question: 17.SP.2
A recent engineering change at Sullivan Wrist Calculator places a backup component in each of the two least reliable transistor circuits. The new circuits will look like the following in Figure 17.SP.2a. What is the reliability of the new system?
Verified Answer:
Reliability = [.9 + (1 - .9) × .9] × .95 × .98 × [...
Question: 10.SP.2
A work operation consisting of three elements has been subjected to a stopwatch time study. The recorded observations are shown in the following table. By union contract, the allowance time for the operation is personal time 5%, delay 5%, and fatigue 10%. Determine the standard time for the work
Verified Answer:
First, delete the two observations that appear to ...
Question: 12.EX.1
ABC ANALYSIS FOR A CHIP MANUFACTURER. Silicon Chips, Inc., maker of superfast DRAM chips, wants to categorize its 10 major inventory items using ABC analysis. APPROACH ABC analysis organizes the items on an annual dollar-volume basis. Shown below (in columns 1–4) are the 10 items (identified by
Verified Answer:
SOLUTION
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Annual...
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