Appendix Chapter 6 Quiz Hours 527 499 542 541 February March April May June July August September dan Costs $ 5,144 $ 5,833 $ 5,220 $ 5,196 $ 4,973 $ 5,200 $5.288 $5,060 489 543 558 513 Management believes that maintenance cost is a mixed cost that depends on machine-hours. Using the least squares regression method, the estimate of the fixed component of maintenance cost per month is closest to: o o o o Type here to search