How many trucks get washed between smokes, Basic Statistics

A. Northbound trucks leaving Helmand Province with USMC communications equipment must go through a washing process before getting underway, so as to prevent Tajikistan from getting "too sandy."  Trucks are ready to wash at a sustained rate of one every 2 hours (exponentially distributed), and a washdown takes 4 hours (exponentially distributed).  There are 10 wash stations that operate in parallel, with 10 wash technicians (hosers) manning the wash stations.  Whenever all 10 wash stations are simultaneously idle, the hosers smoke a communal hookah together until the next truck arrives for a wash.

1. This is a X/Y/Z/W kind of queue (give X, Y, Z, and W).

2. Give rho for this system.

3. Is this queue stable?

4. On average, how long do the hosers smoke the hookah?

5. On average, how many hookah smoking breaks to the hosers enjoy per day?

6. On average, how long is the work period between smokes?

7. On average, how many trucks get washed between smokes?

C. (Use QTS)  Summon up the model SENSITIVITY OF M/G/1 TO THE SERVICE-TIME COEFFICIENT OF VARIATION in QTS.  Recall that CoV = stddev(service time)/mean(service time), the ratio of the service time's standard deviation to its mean.  Make rho = .9, and run the model.

1. For CoV = 1.0, L should be 9.0.  Why does this make sense?

2. For CoV = 0, how does this queue operate?

3. For CoV's other than 1.0, does Little's Law apply?  If so, why isn't the L = 9.0 for all values of CoV?

4. Calculate L-Lq for several values of CoV.  Comment.

Posted Date: 4/6/2013 6:15:01 AM | Location : United States







Related Discussions:- How many trucks get washed between smokes, Assignment Help, Ask Question on How many trucks get washed between smokes, Get Answer, Expert's Help, How many trucks get washed between smokes Discussions

Write discussion on How many trucks get washed between smokes
Your posts are moderated
Related Questions
Buildings solutions Permanent arrangements owned or held by the state. The cost of buildings includes both acquisition costs (historical cost, ancillary costs, and, for proprieta

A. Complete the correlation matrix table. B. Which variable (s) has the highest correlation coeffieient which is not a perfect correlation? C. Which variable (s) has the lowest cor

In the 2009 baseball season, the team that finished the regular season with the best record in the National League was the Los Angeles Dodgers, with a record of 95-67. (For those o

Stock at hand 1000 unit at #0.80 each, received 2000 units at #1.10 each,

Books of original entry Books of original entrance are a record in which the various or many other transactions are initially and formally recorded and serve up as the straight so


what are different method of classifying overhead? indicate the advantag

Q. Illustrate Linear Correlation? Ans. In bivariate studies we are often interested in finding out whether there is a relationship between two sets of data. Are SAT score

Questions 1.  What would be the appropriate statistical procedure to test the following hypothesis:  "Triglyceride values are a good predictor of weight in obese adults." 2.

causes of each component