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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 7 8 7 6 6 3 3 8
10 4 8 7 8 8 5 9 4 8
4 3 8 5 4 4 4 4 8 5
5 5 2 5 9 9 9 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 this airport. (Round your answers to two decimal places.)
Sagot :
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