Final answer:
Andrew should find alternative suppliers, address the issue with the underperforming machine, and actively listen to customer complaints.
Step-by-step explanation:
Andrew, as the owner of the Plastic Injection Moulding factory, has several options to address the issues he is facing.
First, he can evaluate and find alternative suppliers who can consistently deliver materials on time. This can involve researching and reaching out to multiple suppliers, comparing their prices, quality, and delivery record.
Second, Andrew should address the issue with the underperforming machine. He can hire a technician to diagnose and fix the problem, or consider replacing the machine altogether if it is beyond repair. Ensuring that all machines meet specifications will help improve the output yield and reduce customer complaints.
Lastly, Andrew should actively listen to customer complaints and take appropriate steps to resolve them. This can involve offering refunds or discounts, improving communication with customers, and implementing measures to prevent similar issues from occurring in the future.