Question

The International Air Transport Association survey's business travelers to develop quality rating for transatlantic gateways airports. The maximum possible rating is 10. Suppose a simple random sample of 50 business travelers is selected and each travelers is ask to provide a rating for the Miami International Airport . The rating obtained from the sample of 50 business travelers follow :


6 4 6 8 7 7 6 3 3 8 10 4 8
7 8 7 5 9 5 8 4 3 8 5 5 4
4 4 8 4 5 6 2 5 9 9 8 4 8
9 9 5 9 7 8 3 10 8 9 6

Develop a 95% confidence interval estimate of the population mean rating for Miami.