A recent engineering graduate was given the job of determining the best production speed for producing bridge girder plates. Tool changer is only relevant during tool change time. Machine operator and variable overhead costs are relevant during both production time and tool change time. Using the information below, determine a) the cost of each piece at the specified speed (calculate to 4 decimal places and enter it in the space provided with the decimal point) and b) at what speed the machine should be operated to minimize total cost per piece.

total cycle time \# units per cycle tool cost per cycle tool chg cost per cycle oper cost per cycle overhead per cycle total cost per cycle total cost per unit Total cost per unit for Speed A Total cost per unit for Speed B Choose A or B to minimize costs It is important that you enter your cost to 4 decimal places. For example, $0.1234 should be entered as 0.1234 . Do not enter the dollar sign. total cycle time \# units per cycle tool cost per cycle tool chg cost per cycle oper cost per cycle overhead per cycle total cost per cycle total cost per unit Total cost per unit for Speed A Total cost per unit for Speed B Choose A or B to minimize costs It is important that you enter your cost to 4 decimal places. For example, $0.1234 should be entered as 0.1234 . Do not enter the dollar sign