Question

You may need to use the appropriate appendix table or technology to answer this question. An 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 a certain airport. The ratings obtained from the sample of 50 business travelers follow.

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

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

Answer 1