Can someone please explain it to me ASAP?!??!!!!

A simulated exercise gave n = 20 observations on escape time (sec) for oil workers, from which the sample mean and sample standard deviation are 370.46 and 22.34, respectively. Suppose the investigators had believed a priori that true average escape time would be at most 6 min. Does the data contradict this prior belief? Assuming normality, test the appropriate hypotheses using a signicance level of 0.05. Ia USE SALT State the appropriate hypotheses. O H0: {1 = 360 Ha: ,u 2 360 O HO: ,u = 360 Ha: ,u > 360 O HO: ,u = 360 Ha: ,u s 360 O HO: ,u = 360 Ha: ,u