Question

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 of 50 business travelers is selected and each traveler is asked to provide a rating for the Miami International Airport. The ratings obtained from the sample of 50 business travelers follow.

4	8	9	10	1	1	1	8	8	8	8	7	6
7	8	8	10	9	1	8	7	8	7	9	8	10
6	4	8	1	1	8	8	7	10	9	7	1	7
5	8	4	1	9	8	9	1	1	7	7

Develop a 95% confidence interval estimate of the population mean rating for Miami. Round your answers to two decimal places.

( _____ , _____ )

Answer 1