Researchers at Purdue University and Wichita State University found that airlines are doing a better job of getting passengers to their destinations on time. AirTran Airways and Southwest Airlines were among the leaders in on-time arrivals, with both having 88% of their flights arriving on time. But for the 12% of flights that were delayed, the dataset named AirDelay contains this information. -  View the infotmation (data that realtes to the question)  in the  screenshot attatched. A) Formulate the hypothesis that can be used to test for a difference between the population mean minutes late for delayed flights by these two airlines. B) Identify the appropriate t-test. Explain your selection.   C)Conduct the test using an α = .05. D) Interpret your results in the context of this problem.

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ISBN:9781119256830
Author:Amos Gilat
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Researchers at Purdue University and Wichita State University found that airlines are doing a better job of getting passengers to their destinations on time. AirTran Airways and Southwest Airlines were among the leaders in on-time arrivals, with both having 88% of their flights arriving on time. But for the 12% of flights that were delayed, the dataset named AirDelay contains this information.

-  View the infotmation (data that realtes to the question)  in the  screenshot attatched.

A) Formulate the hypothesis that can be used to test for a difference between the population mean minutes late for delayed flights by these two airlines.

B) Identify the appropriate t-test. Explain your selection.
 

C)Conduct the test using an α = .05.

D) Interpret your results in the context of this problem.

AirTran
Southwest
34
45
59
64
43
42
30
33
3
66
32
105
42
45
85
28
30
38
48
85
110
75
50
45
10
33
26
50
70
63
52
42
83
35
78
33
27
64
70
65
27
90
38
52
76
Transcribed Image Text:AirTran Southwest 34 45 59 64 43 42 30 33 3 66 32 105 42 45 85 28 30 38 48 85 110 75 50 45 10 33 26 50 70 63 52 42 83 35 78 33 27 64 70 65 27 90 38 52 76
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