Edge Company produces two models of its product with the same machine. The machine has a capacity of 166 hours per month. The following information is available. 1. Determine the contribution margin per machine hour for each model. Beto Company pays $4.70 per unit to buy a part for one of the products it manufactures. With excess capacity, the company is considering making the part. Making the part would cost $4.50 per unit for direct materials and $1.00 per unit for direct labor. The company normally applies overhead at the predetermined rate of 200% of direct labor cost. Incremental overhead to make the part would be 80% of direct labor cost. (a) Prepare a make or buy analysis of costs for this part (Enter your answers rounded to 2 decimal places.) (b) Should Beto make or buy the part