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Sid Das Brick Distributors currently employs 1 worker whose job is to load bricks on outgoing company trucks. An average of 24 trucks per day, or 3 per hour, arrive at the loading platform, according to a Poisson distribution. The worker loads them at a rate of 4 trucks per hour, following approximately the exponential distribution in his service times. Das believes that adding an additional brick loader will substantially improve the firm's productivity. He estimates that a two-person crew loading each truck will double the loading rate (µ) from 4 trucks per hour to 8 trucks per hour. Analyze the effect on the queue of such a change and compare the results to those achieved with one worker. Calculate the average number in the queue, average number in the system, average time in the queue, average time in the system, the system utilization rate, and the probability that the system is empty
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December demand rates of production crew both 1,600 units per month. Cost of hiring additional workers is $5,000 per 100 units. Cost of lying off workers is $7,500 per 100 units. Evaluate this plan.
This was expected to cost a total of $8,501,000. To date they have spent $5,001,000 on the superstructure. Computes the schedule variance, schedule performance index also cost performance index for the project to date.
Maurice Micklewhite has decided to replant his garden. Show him what the cost is of making an erroneous decision at various stages of the project
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Explain how are the mean activity times and activity variances computed in probabilistic CPM/PERT analysis.
Manager has determined that if 2 additional barbers are hired, shop can accommodate 80 customers per day. Illustrate what are design and effective capacities for barber shop.
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