The International Air Transport Association surveys business travelers to make quality ratings for the transatlantic gateway airports. The maximum possible rating is 10. Assume a simple random sample of 50 business travelers is selected and each traveler is asked to offer a rating for the Miami International Airport. The sample average was 6.34, with the sample standard deviation of 2.163. The ratings obtained from sample of 50 business travelers follow.
2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 10, 10
Make a 95% confidence interval estimate of the population mean rating for Miami.
Enter your answer using parentheses and a comma, in the form (n1, n2).