Rio Tinto Mining, Inc. and the American Mining Workers Union, the union that represented Rio Tintos workers, negotiated a collective bargaining agreement. In the CBA $($collective bargaining agreement$),$ it stated that if a Rio Tinto employee was discharged for a workplace rule violation, the matter would be submitted to an arbitrator. The CBA agreement also limited the arbitrator to determine whether the rule was reasonable and whether the employee violated it$.$ Later, Rio Tinto Mining discharged employee Gabby Macias and the union appealed to arbitration. The arbitrator determined that Macias violated a reasonably safe rule, but was not convinced that Rio Tinto should have treated the violation more seriously than other rule violations. The arbitrator ordered Macias reinstated. Can a court set aside this order? Explain Using the IRAC method $($Issue$,$ Rule, Application, Conclusion$).$