There is only one copying machine in the student lounge of the business school. Students arrive at the rate of λ=50

per hour (according to a Poisson distribution). Copying takes an average of 50 seconds, or μ=72 per hour (according to a negative exponential distribution).

a) The percentage of time the machine is used = percent (round your response to the nearest wholenumber).

b) The average length of the queue = students(round your response to two decimal places).

c) The average number of students in the system = students (round your response to two decimalplaces).

d) The average time spent waiting in the queue = minutes (round your response to two decimal places).

e) The average time in the system = minutes(round your response to two decimal places).

Acompany set up a petty cash fund with $800. the disbursements are as follows: office supplies $300 shipping $50 postage $30 delivery expense $350 to create the fund, which account should be credited? a. postage b. cash at bank c. supplies d. petty cash

Insurance companies have internal controls in place to protect assets, monitor the accuracy of accounting records and encourage operational efficiencies and adherence to policies. these internal controls are generally of two types: administrative controls and accounting controls. administrative controls are the policies and procedures that guide the daily actions of employees. accounting controls are the policies and procedures that delineate authorizations of financial transactions that are done, safeguard assets, and provide reports on the company’s financial status in a reliable and timely manner. internal controls should include both preventative and detective controls. the purpose of preventative controls is to stop problems and errors before they occur. detective controls identify problems after they have occurred. preventative controls are usually more effective at reducing problems, but they also tend to be more expensive. internal controls must be flexible to adjust for changes in laws and regulations in addition to adding new products or modifying current ones. companies must also do regular analyses to ensure that the benefits of implementing the controls are worth their costs. when concerned about paying unwarranted insurance claims which type of control would be useful?

Which ranks these careers that employers are most likely to hire from the least to the greatest?