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Consider a job shop that consists of M machines and one serviceman. Suppose that the amount of time each machine runs before breaking down is exponentially distributed with mean 1/λ, and suppose that the amount of time that it takes for the serviceman to ?x a machine is exponentially distributed with mean 1/μ. We shall attempt to answer these questions: (a) What is the average number of machines not in use? (b) What proportion of time is each machine in use?
objectives1. introduce some basic library search tools2. demonstrate the relevance of statistics in this case
Explain how much should the airport authority be willing to pay for perfect information about the success of a brand new airport.
Using a single-server queuing system with Poisson arrivals of 10 units per hour and a constant service time of 2 minutes per unit. How do I go about calculating how long the customer waiting time will be in seconds, on average?
Standard deviation is a measure of variability so lower standard deviation means more consistency. In statistics, the symbol for population standard deviation is the Greek lowercase letter sigma
a catalog company that receives the majority of its orders by telephone conducted a study to determine how long
The project manager wishes to set the due date for the completion of the project so that there is a 90% chance of finishing on schedule. Thus, there would only be a 10% chance the project would take longer than this due date. What should this due ..
Draw a straight or dotted line for graphing. Most especially the below problem. Please assist. Could you also let me know what is the significance of the dotted and straight lines?
A survey asked tax accounting firms their business form (S = sole proprietorship, P = partnership, C = corporation) and type of risk insurance they carry (L = liability only, T = property loss only, B = both liability and property).
The following table shows the number of miles driven in each trial.
one test that people who wish to donate blood must undergo is a test of iron level. individuals with insuficient iron
The number of citizens who selected roads as the highest priority for the improvement funds is what percent of the number of people who selcted water and sewer as the top priority
The publisher reports that 80% of college professors require or recommend that their students purchase some type of textbook package.
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