2. The total wait cost is __ dollars when there is only one clerk, and it will be reduced to only __ dollars if there are four clerks.( Please only enter an integer and include no units.)
3. The total cost of hiring is only __ dollars when there is only one clerk, and it will be increased to __ dollars if there are four clerks.( Please only enter an integer and include no units.)
4. To minimize the total expected cost based on your calculations above, the optimal number of clerks to have on duty each Sunday is ___________.
5. The average number of trucks in the system is __ trucks.( Please only enter an integer and include no units.)
6. The average time per truck spent in the system is __ minutes.( Please only enter an integer and include no units.)
7. The utilization rate for the bin area is __.( Please round it to two decimal points.)
8. The probability that there are more than 3 trucks in the system is about __.( Please round it to two decimal points.)
9. The total daily cost in the unloading process is ___ per day.( Please only enter an integer and include no units.)
10. Based on the above calculation, the net saving / loss of enlarging the bin is ___ dollars, hence the cooperative ____ proceed to enlarge the bin.( Please round to an integer and include no units. Use a "-" sign in front the number to indicate a net loss, if there is a loss. Also, enter only " should " or " should not " in the second blanket.)