A travel website wants to classify international airports according to the mean rating given by business travellers. A rating scale from 0 to 10 will be used. Airports with a population mean rating greater than 7 will be designated as superior service airports. The website stuff surveyed a sample of 60 business travellers at each airport. Suppose the sample for Abu Dhabi International Airport provided a sample mean rating of 7.250 and a sample standard deviation of 1.052. Do the data indicate that Abu Dhabi should be designated as a superior service airport? Use a = 0.05 as the level of significance.