The success of an airline depends heavily on its ability to provide a pleasant customer experience. One dimension of customer service on which airlines compete is on-time arrival. The tables below contains a sample of data from delayed flights showing the number of minutes each delayed flight was late for two different airlines, Company A and Company B. Company A Company B 34 46 59 43 30 3 32 42 85 30 48 110 50 10 26 70 83 78 27 70, 27 90 38 52 76 52 Ho: H1 - H2 - 0 H₂: H₁-H₂0 Ho: H3 - H2 =0 H₂H₁-H₂=0 Hỏi hội đảng 50 H₂: H₁-H₂>0 Ho: Hi-H2 <0 H₂: H₁-H₂ = 0 Ho: M1-1₂ 20 H₂: H₂H₂ <0 64 42 32 67 106 44 28 38 84 74 min min (a) Formulate the hypotheses that can be used to test for a difference between the population mean minutes late for delayed flights by these two airlines. (Let ₁ = population mean minutes late fo delayed Company A flights and ₂ = population mean minutes late for delayed Company B flights.) 45 33 50 64 42 36 34 64 64 (b) What is the sample mean number of minutes late for delayed flights for each of these two airlines? Company A Company B (c) Calculate the test statistic. (Round your answer to three decimal places.)

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The success of an airline depends heavily on its ability to provide a pleasant customer experience. One dimension of customer service on which airlines compete is on-time arrival. The tables below
contains a sample of data from delayed flights showing the number of minutes each delayed flight was late for two different airlines, Company A and Company B.
Company A
Company B
34 59 43 30 3
46
42 85 30 48
50 10 26 70
83 78 27 70
32
O
110
52
27 90 38 52 76
Ho: H1 - H2 = 0
на: 1-12 + 0
Но: H1 - H2+0
На: Н1 - Н2 = 0
Hoi thi H250
Ha: H1 - H2>0
Ho M1 - H2 <0
H₂H1-H₂ = 0
Hỏi khi ky 20
На М1 - H2 <0
64 42 32
106 44
min
min
74 45
42 36
28
33
(a) Formulate the hypotheses that can be used to test for a difference between the population mean minutes late for delayed flights by these two airlines. (Let #₁ = population mean minutes late for
delayed Company A flights and #₂ = population mean minutes late for delayed Company B flights.)
32 67
38
84
50 64
34 64 64
(b) What is the sample mean number of minutes late for delayed flights for each of these two airlines?
Company A
Company B
(c) Calculate the test statistic. (Round your answer to three decimal places.)
Transcribed Image Text:You may need to use the appropriate technology to answer this question, The success of an airline depends heavily on its ability to provide a pleasant customer experience. One dimension of customer service on which airlines compete is on-time arrival. The tables below contains a sample of data from delayed flights showing the number of minutes each delayed flight was late for two different airlines, Company A and Company B. Company A Company B 34 59 43 30 3 46 42 85 30 48 50 10 26 70 83 78 27 70 32 O 110 52 27 90 38 52 76 Ho: H1 - H2 = 0 на: 1-12 + 0 Но: H1 - H2+0 На: Н1 - Н2 = 0 Hoi thi H250 Ha: H1 - H2>0 Ho M1 - H2 <0 H₂H1-H₂ = 0 Hỏi khi ky 20 На М1 - H2 <0 64 42 32 106 44 min min 74 45 42 36 28 33 (a) Formulate the hypotheses that can be used to test for a difference between the population mean minutes late for delayed flights by these two airlines. (Let #₁ = population mean minutes late for delayed Company A flights and #₂ = population mean minutes late for delayed Company B flights.) 32 67 38 84 50 64 34 64 64 (b) What is the sample mean number of minutes late for delayed flights for each of these two airlines? Company A Company B (c) Calculate the test statistic. (Round your answer to three decimal places.)
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