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A drug store has two windows available for serving customers, who arrive at a Poisson rate of 40/hr. Service time is exponentially distributed with a mean of 2 min. Only one window is open as long as there are three or less customers in the shop. An identical server opens a second window when there are four or more customers in the shop. The manager of the shop helps the two attendants when there are six or more customers in the shop. When the manager is helping, the mean service time for each of the two servers is reduced to 1.5 min. The shop cannot legally hold more than 20 customers. Use the general birth-death process to determine 1) the expected number of customers in the shop 2) the probability that the manager will be helping serve customers and, 3) the probability that the store is full.
Northwest airlines runs daily flights from Detroit to Amsterdam. They face a fixed cost of $70,000 for each flight independent of the actual number of passengers on the plane. Ther
suppose the manufacturer has an inflated demand forecast as follows: Quantity Probability 2,200 5% 2,300 6% 2,400 10% 2,500 17% 2,600 30% 2,700 17% 2,800 12% 2,900 3% (a) Suppose t
A sample of 36 "AA" Alkaline batteries has a mean life of 6 months. The standard deviation of the population is known to be 3 months. Find the 95% confidence interval of the popual
Explain Fixed Cost. Fixed Cost: Cost may be described as the amount of expenditure incurred on, or attributable to a specified thing. Fixed costs are those costs that tend t
1.Decide on which is the best alternative and choose weights for the two capacity factors based on your findings. 2.Once you have selected the factors for the two capacity alter
After a risk workshop has been completed, risk interviews are often completed with subject matter experts. Assess the value of the interviews to identify risk response strategies.
The hunt is on: Rich's 13 year old daughter Alexandra is going to give him an introductory trombone concert later in the day, and he wants to purchase earplugs before then. Three s
Benefits of outsourcing and how to improve capacity using ratio rastionalisation and sub contracting
Consider the following two-person zero-sum game. Assume the two players have the same two strategy options. The payoff table shows the gains for Player A. Player B
Describe an approach to a business diversity program that would pragmatic and ethical
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