Final answer:
Prehearing stipulations are indeed joint union-management agreements on issues and certain facts pertaining to a grievance, which streamline the arbitration process.the answer is true)
Step-by-step explanation:
The statement that prehearing stipulations are joint union-management agreements as to the issues involved and certain grievance "facts" concerning the grievance is true. Prehearing stipulations serve as a way to simplify and expedite the arbitration process by having both parties agree on certain facts and legal issues in advance, so that the focus can be on the disputed elements. By doing this, it reduces the amount of evidence and number of witnesses during the arbitration hearing, thereby making the process more efficient.