I'm not understanding how to do this

1. According to the Bureau of Transportation Statistics, on-time performance by the airlines is described a follows: Action % of Time On Time 70.8 National Aviation System delay 8.2 Aircraft arriving late 9 Other (because of weather and other conditions) 12 Records of 200 randomly selected flights for a major airline company showed that 125 planes were on times; 40 were delayed because of weather, 10 because of a National Aviation System delay, and the rest because of arriving late. At a = .05, do these results differ from the government's statistics