According to the Bureau of Transportation Statistics, on-time performance by the airlines is described as follows: Action % of Time On time 70.8 National Aviation System delay 8.2 Aircraft arriving late 9.0 Other (because of weather and other conditions) 12.0 Records of 200 randomly selected flights for a major airline company showed that 125 planes were on time; 40 were delayed because of weather, 10 because of a National Aviation System delay, and the rest because of arriving late. At α = 0.05, do these results differ from the government’s statistics
According to the Bureau of Transportation Statistics, on-time performance by the airlines is described as follows: Action % of Time On time 70.8 National Aviation System delay 8.2 Aircraft arriving late 9.0 Other (because of weather and other conditions) 12.0 Records of 200 randomly selected flights for a major airline company showed that 125 planes were on time; 40 were delayed because of weather, 10 because of a National Aviation System delay, and the rest because of arriving late. At α = 0.05, do these results differ from the government’s statistics
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 27PPS
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According to the Bureau of Transportation Statistics, on-time performance by the airlines is described as follows:
Action | % of Time |
---|---|
On time | 70.8 |
National Aviation System delay | 8.2 |
Aircraft arriving late | 9.0 |
Other (because of weather and other conditions) | 12.0 |
Records of 200 randomly selected flights for a major airline company showed that 125 planes were on time; 40 were delayed because of weather, 10 because of a National Aviation System delay, and the rest because of arriving late. At α = 0.05, do these results differ from the government’s statistics?
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