Please help me check if my answer is correct or not. Thank you.

Knott's Industries manufactures standard and super premium backyard swing sets. Currently it has four identical swing-set-making machines, which are operated 225 days per year and 8 hours each day. A capacity cushion of 15 percent is desired. The following information is also known: A Standard Model Super Premium Model Annual Demand 20,000 10,000 Standard Processing Time 7 min 20 min Average Lot Size 50 35 Standard Setup Time per Lot 30 min 45 min a. Does Knott's have sufficient capacity to meet annual demand? Knott's does have sufficient capacity to meet annual demand because 4 machines are needed. (Enter your response rounded up to the next whole number.) b. If Knott's was able to reduce the setup time for the Super Premium Model from 45 minutes to 30 minutes, would there be enough current capacity to produce 20,000 units of each type of swing set? If Knott's was able to reduce the setup time for the Super Premium Model from 45 minutes to 30 minutes, there would be enough capacity to produce 20,000 units of each type of swing set because 4 machines are needed. (Enter your response rounded up to the next whole number.)