Answer these

Guardian is a national manufacturing company of home health care appliances. It is faced with a make-or-buy decision. A newly engineered lift can be installed in a car trunk to raise and lower a wheelchair. The steel arm of the lift can be purchased internationally for $3.50 per unit or made in-house. If manufactured on site, two machines will be requi Machine A is esti- iated to cost $18,000, have a life of 6 years, and machine B will cost $12,000, have a life of 4 years, and have a $-500 salvage value (carry-away cost). Ma- chine A will require an overhaul after 3 years costing $3000. The annual operating cost for machine A is expected to be $6000 per year and for machine B is $5000 per year. A total of four 's at a rate of $12 30 per hour per operator. In a normal 8-hour period, the operator an produce parts sufficient to manufact ture 1000 units. Use a MARR of 15%% per year to determine the following- (a) Number of units to manufacture each year to justify the in-house (make) option. (b) The maximum capital expense justifiable to purchase machine A, assuming all other esti- mates for machines A and B are as stated. The company expects to produce 10,000 units per year.\f\f\f\f