ABS specializes in repair and maintenance of industrial machines. One repair technician has been assigned to five identical grinding machines for repair and maintenance. The machine breaks down after about 20 hours of use, and breakdowns have a Poisson probability distribution. It takes 6 hours to repair a machine, and repair times follow an exponential distribution. Machine downtime costs the company $250 an hour, and the technician is paid $50 an hour. Determine the average number of machines working.
a. 3.59
b. 2.87
c. 3.43
d. 2.54
b. 2.87
You might also like to view...
A reconciliation from Enterprise funds statements to government-wide statements is not necessary because:
A. they both use the same measurement focus and basis of accounting (current financial resources, modified accrual). B. they use a different measurement focus and basis of accounting. C. enterprise funds are not included in the government-wide statements. D. they both use the same measurement focus and basis of accounting (economic resources, accrual).
Mildred desires to have $7,049 on deposit five years from today. If she has $4,000 to deposit, what rate of interest, compounded annually, must be obtained to accumulate the desired $7,049 in five years?
A) 12% B) 10% C) 9% D) 8%
Which of the following is an example of an intrinsic reward?
A. The U.S. Army appealing to the patriotism in people to get more new recruits B. A firm providing free vehicles to employees who are promoted to the managerial level C. A school management giving monthly bonuses to the teachers D. A manufacturing organization offering a monthly bonus on joining the firm at a particular position in a particular city E. A bank offering loans at a subsidized rate to its employees
The general rule in contract law is that an acceptance of an offer must be its "mirror image."
a. True b. False Indicate whether the statement is true or false