3 Adriana Corporation manufactures football equipment. In planning for next year, the managers want to understand the relation between activity and overhead costs. Discussions with the plant supervisor suggest that overhead seems to vary with labor-hours, machine-hours, or both. The following data were collected from last year's operations. Overhead Costs 375 points Month Labor-Hours Machine-Hours 1 715 1,351 $102,792 2 710 1,417 103,896 3 690 1,511 109,918) 4 735 1,453 108,338 5 790 1,586 116,189) eBook 6 755 1,585) 114,511 740 1,386 107,073 8 725 1,302 102,013) 9 715 1,463 106,456 References 10 790 1,548 113,025 11 665 1,298 102,553 12 700 1,620 115,755 Required: a. Use the high-low method to estimate the fixed and variable portions of overhead costs based on machinehours. b. Managers expect the plant to operate at a monthly average of 1,500 machine-hours next year. What are the estimated monthly overhead costs, assuming no inflation? Complete this question by entering your answers in the tabs below. Required A Required B Use the high-low method to estimate the fixed and variable portions of overhead costs based on machine-hours. (Round) "Variable cost" answer to 2 decimal places.) Ch