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.

Click on the datafile logo to reference the data.

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 (to 2 decimals).

95% Confidence:

( , )

Rating

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