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14 15 16
14 15 16
QUESTION 14
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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