Hartman Company's Lucas plant manufactures thermostatic controls. Plant management has experienced fluctuating monthly overhead costs and wants to estimate overhead costs accurately to plan its operations and its financial needs. Interviews with plant personnel and studies reported in trade publications suggest that overhead in this industry tends to vary with labor-hours. A member of the controller's staff proposed that the behavior pattern of these overhead costs be determined to improve cost estimation. Another staff member suggested that a good starting place for determining cost behavior patterns is to analyze historical data. Following this suggestion, monthly data were gathered on labor-hours and overhead costs for the past two years. No major changes in operations occurred over this period of time. The data are shown in the following table. Month Labor-Hours Overhead Costs 1 251,550 $2,741,220 2 238,450 2,375,230 19 1345678022222222 192,600 2,400,150 271,300 2,590,770 323,800 3,071,820 290,950 2,618,170 271,300 2,480,240 251,570 2,745,560 9 231,900 2,821,350 343,450 3,437,710 11 185,950 2,294,340 231,900 2,550,680 382,820 3,603,720 376,300 3,404,790 290,940 3,016,500 395,950 3,638,340 356,570 3,553,900 323,770 3,191,620 389,395 3,481,720 317,200 3,219,520 343,460 3,495,430 336,890 3,207,260 382,830 3,600,630 24 376,270 3,636,650 Required: