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Carol Creedence, the plant manager of the Clearwater Companys Revival plant, has prepared the following graph of the unit costs from the job cost reports for the plants highest volume product, Product CCR:

Carol is concerned about the erratic and increasing cost of Product CCR and has asked for your help. Prepare a half-page memo to Carol, interpreting this graph and requesting any additional information that might be needed to explain this situation.

$40 $35 $30 $25 Unit Cost $20 $15 $10 $5 $0 Day MT W RF M T WR F M T W RF W R F M T Day of Week