Final answer:
Employees of AT Z Wireless can file a complaint with the NLRB or organize a strike if the company fails to negotiate in good faith without justification.
Step-by-step explanation:
If AT Z Wireless fails to negotiate with its employees in good faith and with no justification for doing so, the employees may have the right to take various actions. These actions can include filing a complaint with the National Labor Relations Board (NLRB) assuming the jurisdiction is in the United States. Additionally, the employees could engage in collective action, such as organizing a strike or protest, to assert their rights and demand fair negotiations. However, it's important for the employees to understand their legal rights and the proper procedure before taking such steps, to ensure that their actions are legally protected.