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Operations research: Queuing theory using TORA
Customers arrive at a thrift bank according to a poisson distribution with a mean of 45 customers per hour. Transactions per customer last about 5 minutes and are exponentially distributed. The bank wants to have a single line multiple-teller operation, similar to the ones used in airports and post offices. The manager is conscious of the fact that customers may switch to other banks if they perceive that their wait in line is "excessive". For this reason, the manager wants to limit the average waiting time in the queue to no more than 30 seconds. How many tellers should the bank provide?
I need help in how to enter this into TORA, and how to interpret the results.
The overall average on a process you are attempting to monitor is 50 units. The average range is 4 units. The sample size is 5. What are the upper and lower control limits of a 3 sigma mean chart? Upper control limit is 52.31 and the lower is 47.69. ..
Substitute a Type 2 service level criterion of 98% for the stock-out cost. Assume that Q is given by the EOQ. Find the values of Q and R.
When the Massachusetts Assembly refused to rescind its letter of protest, Governor Francis Bernard. The Boston Massacre resulted from. Edmund Burke's speech to the House of Commons indicates that he believed that. After the Boston Tea Party, the Brit..
Based on the organization you selected (Nationstar Mortgage Company), write a critical risk assessment and milestones schedule of 350-500 words (plus a spreadsheet) that addresses the following (guidelines):
Summarize the similarities and differences between confined spaces and permit-required confined spaces, and give at least three examples of each. Summarize the duties of personnel involved in the performance of a permit-required confined-space entry.
Pretend that you have developed a "personal quality checklist" on which you tally non conformances in your personal life (such as being late for work or school, not completing homework on time, not getting enough exercise, and so on). Briefly describ..
Let’s talk about executive salaries: Most media outlets will be happy to talk about how “excessive” US executive salaries have become. The media outlets rarely point out that US Corporations are also the most profitable in the world. Do the high sala..
Obtain a summary of all Research and Development projects currently underway, including their current status,estimated time and cost to complete and the estimated
Sudson Washer and Dryer Service is in the business of leasing used washers and dryers to apartment landlords for a contracted lease term. The coin-operated machines are used by apartment tenants.
What are the pros and cons of quoting project times aggressively? Conservatilvely?
Explain why workplace spirituality seems to be an important concern.
Explain, in your own words, what a "store within a store" is. Provide 3 situations where this could work. Explain the logic behind your decisions.
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