Agrocery store has three open checkout lanes. on average, 45 shoppers arrive at these lanes per hour. the coefficient of variation of the interarrival time is equal to 1. the average service time for each lane is 18 customers per hour, and the coefficient of variation for the service time distribution is three minutes per lane.

calculate the utilization factor of the system.

a.
0.833

b.
17.91

c.
3.58

d.
3

You have just received notification that you have won the $2.0 million first prize in the centennial lottery. however, the prize will be awarded on your 100th birthday (assuming you're around to collect), 66 years from now. what is the present value of your windfall if the appropriate discount rate is 8 percent?

What is the relationship between the national response framework and the national incident management system (nims)? a. the national response framework replaces the nims, which is now obsolete. b. the response protocols and structures described in the national response framework align with the nims, and all nims components support response. c. the nims relates to local, state, and territorial operations, whereas the nrf relates strictly to federal operations. d. the nims and the national response framework cover different aspects of incident management—the nims is focused on tactical planning, and the national response framework is focused on coordination.

Why is efficiency an important economic goal?