The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample ofbusiness travelers is selected and each traveler is asked to provide a rating for the Miami International Airport. The ratings obtained from the sample ofbusiness travelers follow.

7 7 3 8 4 4 4 5 5 5 5 4 9

10 9 9 8 10 4 5 4 10 10 10 11 4

9 7 5 4 4 5 5 4 3 10 10 4 4

8 7 7 4 9 5 9 4 4 4 4

Develop aconfidence interval estimate of the population mean rating for Miami. Round your answers to two decimal places.