In your role as a consultant to a legal firm, you have been requested to determine whether calculations submitted in a legal action are valid. The problem is to determine what year a compressor was placed into service. The information in the table is available. It is claimed that the compressor was placed into service in 1976. History suggests that during the period from 1976 to 1985 there was significant inflation. Do you believe the information submitted is correct? If not, what year do you believe the compressor to be placed into service? Use CEPCI = 500 for 2006.

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Date Compressor Power (kW) ??? 1000 Total Module Cost (in 10³$) 645.93 500.00 811.68 2000 500 2006 775 Note: CEPCI (1986) = 318, CEPCI (1981)=297, CEPCI (1976) = 192.