1.
Customers arrive every three minutes governed by a Poisson distribution. A single server is capable of handling 30 customers per hour and this service time is exponentially distributed. What is the likelihood that more than 4 customers are in the system?
Answer
less than or equal to .1
greater than 0.1 but less than or equal to 0.15
greater than 0.15 but less than or equal to 0.25
greater than 0.25 but less than or equal to 0.32
Greater than 0.32
5 points
QUESTION 15
1.
A trucking company has 5 trucks that each requires service at an average rate of once every 40 hours, according to an exponential distribution. The firm has a mechanic who needs 5 hours to complete the average job with exponential service times. What is the probability that there will be no trucks in the system?
Answer
less than or equal to 0.50
greater than 0.50 but less than or equal to 0.60
greater than 0.60 but less than or equal to 0.70
greater than 0.70
5 points
QUESTION 16
1.
A trucking company has 5 trucks that each requires service at an average rate of once every 40 hours, according to an exponential distribution. The firm has a mechanic who needs 5 hours to complete the average job with exponential service times. What is the average utilization of the mechanic?
Answer
less than or equal to 50 percent
greater than 50 percent but less than or equal to 60 percen
greater than 60 percent but less than or equal to 70 percent
greater than 70 percent
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