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A vending machine dispenses hot chocolate or coffee. Service time is 30 seconds per cup and is constant. Customers arrive at a mean rate of 78 per hour, and this rate is Poisson-distributed.
a. Determine the average number of customers waiting in line. (Round your answer to 2 decimal places.)
b. Determine the average time customers spend in the system. (Do not round intermediate calculations. Round your answer to 2 decimal places.)
c. Determine the average number in the system. (Do not round intermediate calculations. Round your answer to 2 decimal places.)
Calculate the LCL and UCL for these data. Plot the control chart. Are all points within the control limits?
Determine the average number of parts waiting to be worked on. Determine the percentage of time the operator is working.
Prepare a product-by-value analysis for the following products, and given the position in its life cycle, identify the issues likely to confront the operations manager, and his or her possible actions.
a) Construct the product structure tree for both fans and their component parts. b) Complete the MRP for the fans and their component parts.
Computer upgrades have a nominal time of 80 minutes. Samples of 10 observations each have been taken, and the results are as listed. Historical data show that the standard deviation of the upgrade times is 0.5 minutes.
The Waikiki Enterprise Corporation produces two types of computers at its manufacturing plant in Torrance, California. Profit on computer A is $900 per unit and for B it is $600.
You are the owner of a local beach bar and you are considering the purchase of a new alcohol distribution system to keep your bartenders from swiping all of your good stuff
A newly opened car wash station has a car wash machine . the machine washes each car in a constant rate of 5 minutes per car. it has been estimated that costumers will arrive according to a poisson distribution at an average of 8 per hour.
WLAN worked well for one semester, but now more students have laptops with Wi-Fi built in also performance has deteriorated significantly. Illustrate what would you recommend that they do. Be sure to support your recommendations.
A fast food franchise tracked the number of errors that occurred in customers' orders. These included wrong menu item, wrong size drink, lack of condiments,
Use the internet to research how an interviewee or a current employee might negotiate better pay and/or benefits. Consider using a search term like "negotiating pay and benefits" or "how to negotiate with your boss."
In April, Burt, a New York City resident, asked Amy, a 16-year old paid intern for his company, to go to Tours, Inc. (Tours), a travel agency, and book a vacation trip for him in early June.
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