Item1 Xia Co. currently buys a component part for $7 per unit. Xia believes that making the part would require $3.30 per unit of direct materials and $1.05 per unit of direct labor. Xia allocates overhead using a predetermined overhead rate of 225% of direct labor cost. Xia estimates an incremental overhead rate of $0.65 per unit to make the part. 1-a. What are the relevant costs for Xia to make or buy the part? (Round your answers to 2 decimal places.) V Answer is complete and correct. Per Unit Make S 5.00 V Buy S 7.00 1-b. Should Xia make or buy the part? 1-b. Should Xia make or buy the part? Make O Buy