An ARENA program was run to estimate the average cost of running a production line. 10 replications were performed. Statistics were collected on a number of parameters. The results are displayed in the table below. There are 5 operators in the system and each operator is paid at the rate of $25 per hour. The overhead costs are $90/hr. The material cost is $20 per piece (part).

The table below shows the throughput computed from each replication, i.e., the number of parts produced per hour. The average cost per hour for this system is ($/hr):

Replication	Throughput
1	10.4
2	12.1
3	13.2
4	9.5
5	10.3
6	10.6
7	11.2
8	11.4
9	10.5
10	10.9