course name is advanced statistical quality control

There are two types of manufacturing errors in any seat in the seat sets of a company that manufactures seats. The first error is the one

observed in the fabrics, and before being sent to the customer, it is noticed in the last inspection and the necessary changes are made. The second type of error is an error that occurs in the mechanisms of the seats, which are beds, and occurs some time after they are sent to the customer. In this case, the seats must be moved back to the factory and replaced or repaired. Sometimes both faults can be found in the same seat.

The first type of errors is 6% and costs the company an average of 400 TL. The second type of errors is 5%, and 600 TL is spent for moving and repairing such faulty seats, but 60% is sent to the customer and 40% is wasted. The initial cost of a sofa set to the company is 4000 TL.

a) List which type of quality costs the costs (quality inspections; 400 TL; and 600 TL costs) are here.

b) In the production line that produces 500 sofa sets per day, how many solid sofa sets are produced on average per day?

C) How much does it cost per solid seat

D) Assuming 250 working days of production per year, what would be the total annual cost of the company due to poor quality?

E) If the factory wants to make 25% profit per seat, how much should the sales price be?