1. Noteperfect Ltd manufacturers sheet music stands in two separate departments, cutting and welding. The following data relate to the year just ended: Cutting Welding Total plant department department Budgeted manufacturing overheadS60 000 54 000 24 000 27 000 30 000 29 400 Actual manufacturing overhead Budgeted machine hours Actual machine hours Budgeted direct labour hours Actual direct labour hours $120 000 108 000 96 000 90 000 15 000 11 700 $180 000 162 000 120 000 117 000 45 000 41 100 Required: Calculate the manufacturing overhead cost of the A Frame using: a) a predetermined plantwide rate based on direct labour hours b) a predetermined plantwide rate based on machine hours c) predetermined departmental rates based on direct labour hours for the cutting department and on machine hours for the welding department. Which of these three estimates of overhead cost is likely to be the most accurate? Explain