ve Helmer's Rockers manufactures two models, Standard and Premium, Weekly demand is estimated to be 106 units of the Standard Model and 73 units of the Premium Model. The followme per unit data apply: Standard Prendum Contribution margin per unit $18 $21 Number of machine-hour required 3 if there are 491 machine-hours available per week how many rockers of each model should im Helmer produce to maximino profit 106 units of Standard and 29 units of Premium 106 units of Standard and 23 units of Premium 82 units of Stangard and 41 units of Premium 18 units of Standard and 73 units of Premium