In T&T’s regional office, a single fax machine is often used by corporate staff to communicate with various parties. Users of the fax machine arrive at a rate of 20 per hour, Poisson distributed. The amount of time each staff member uses the fax machine (service time); is on average about 2 minutes with a standard deviation of 4 minutes (equivalent to 4/60 = 1/15 hrs.), though its distribution is unknown (considered as General). In this case, the average number of staff members waiting to use the fax machine would average to be

a. 0.50

b. 0.67

c. 1.33

d. 2.22

e. 3.33

1. In the T&T fax machine problem, the average number of staff members waiting to use and currently using the fax machine would average to be

a. 1.00

b. 2.33

c. 3.67

d. 4.00

e. 6.67

2. In the T&T fax machine problem, the average amount of time a staff member has to wait in order to use the fax machine would be

a. 2.00 minutes

b. 4.67 minutes

c. 6.67 minutes

d. 8.00 minutes

e. 10.00 minutes Save Answer

3. In the T&T fax machine problem, the average total amount of time a staff member spends in waiting and using the fax machine would be

a. 4.00 minutes

b. 8.00 minutes

c. 10.00 minutes

d. 12.00 minutes

e. 14.00 minutes

4. In the T&T fax machine problem, the average utilization ratio of the fax machine is

a. 33.33%

b. 50.00%

c. 66.67%

d. 75.00%

e. 99.99%