I have tried and need help eBook The International Air Transport Association sur

Question

I have tried and need help

eBook 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 8 10 8 4 4443 10 3 24789 3 8 995 3 10 10 5 10 4 10 Develop a 95% confidence interval estimate of the population mean rating for Miami. Round your answers to two decimal places 4.9920 ,6.488 Hide Feedback Incorrect

Explanation / Answer

The statistical software output for this problem is:

One sample T confidence interval:
: Mean of variable

95% confidence interval results:

Hence,

95% confidence interval will be:

(4.97, 6.51)

Variable Sample Mean Std. Err. DF L. Limit U. Limit Data 5.74 0.38205673 49 4.9722283 6.5077717

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