Step 1 :Identify the null and alternative hypotheses.
Step 2 :The null hypothesis \(H_{0}: \mu = 120\)
Step 3 :The alternative hypothesis \(H_{1}: \mu > 120\)
Step 4 :\boxed{\text{Final Answer: }} \begin{tabular}{lll} \(H_{0}:\) & \(\mu\) & \(= 120\) \\ \(H_{1}:\) & \(\mu\) & \(> 120\) \end{tabular}