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[Solution Library] With rising fuel costs, the amount of time it takes for an airliner to taxi from the departure gate to takeoff is a concern. Data File

Question: 8. With rising fuel costs, the amount of time it takes for an airliner to taxi from the departure gate to takeoff is a concern. Data File ATL Taxi Times gives taxi times for random samples of 100 flights in July 2000 and in July 2007 at the Atlanta Hartsfield Airport.

  1. Construct a 95% confidence interval estimate of the mean taxi time at the Atlanta airport in July 2000.
  2. Construct a 95% confidence interval estimate of the mean taxi time at the Atlanta airport in July 2007.
  3. Based on your answers to parts a and b, can you conclude that taxi times increased between 2000 and 2007 at the Atlanta Airport?

Note: Data downloaded June 16, 2008 from http://www.transtats.bts.gov/ .

Price: $2.99
Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document


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