Answer:
Generally, before a dispute is solved by an arbitrator, both parties must sign an agreement where they accept the arbitrator's decision and that makes it binding for both sides. Since both parties reside in different states (interstate commerce), federal law applies. The American Arbitration Act states that arbitration is a legal and valid way to solve disputes outside a courtroom and that the decisions taken by the arbitrators are final and binding.
In this case, Cork Masters must obey the arbitrator's resolution.