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Messages are transmitted from low speed terminals and arrive at a message concentrator at a Poisson rate of 600/hr. They are held in a buffer until a hi-speed trunk line is free to transmit them. The trunk line transmission time is exponential with a mean of 30 secs. Determine the smallest integer number of trunk lines needed so that tq the waiting time in the queue satisfies the relation t P[tq < 60 sec.]> 0.95, i.e., the probability exceeds 95% that the time the message spends in the buffer is less than 60 sec. Compute L and Lq for the number of trunk lines you determined.
Chase strategy - The workers are hired and fired in a way that total inventory and stockouts are always zero. Level Strategy- The company hires 5 workers at the beginning and keeps the workforce unchanged throughout the planning horizon.
Assume chase policy is being used, that is, the number of workers is changed every month to match demand with capacity. Explain how many workers will you fire in March.
A manager is quite concerned about the recent deterioration of a section of the roof on a building that houses her firm's computer operations.
What is the net cash outflow for the new machine after considering the sale of the old machine? The firm's tax rate for ordinary income is 30%
The Retread Tire Company recaps tires. The fixed annual cost of the recapping operation is $60,000. The variable cost ofrecapping a tire is $9. The company charges $25 to recap a tire.
If you were the logistics operations manager responsible for this move, what would be your critical ratio if you had only 2 days left to meet your deadline and you only have to consider feeding the horses
If the police variable for unforeseen contingencies is set at 5 percent, explain how many containers should Jitson authorize for the gear replenishment system.
ABC Freightways maintained its principal place of business in Arkansas. However, they provided trucking services in all states west of the Mississippi River, which included the State of Kansas.
What is the average number of customers waiting in line? What is the probability of having more than 3 customers in the system?
Identify, discuss, and be specific on five differential costs that might exist between the two options
Illustrate what kinds of things would likely requisite forecasts. Illustrate what inventory items does Hazel probably have. Name one inventory decision she has to make periodically.
Construct a pie chart that plots the percentage of patients unssatisfied with their meals. Set the control limits to include 99.73% of the random variation in meal satisfaction. Comment on the results.
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