The Success Of An Airline Depends Heavily On Its Ability To Provide A Pleasant Customer Experience One Dimension Of Cus 1 (51.89 KiB) Viewed 25 times
The Success Of An Airline Depends Heavily On Its Ability To Provide A Pleasant Customer Experience One Dimension Of Cus 2 (26.4 KiB) Viewed 25 times
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 8. Company A Company B 34 59 43 30 الما 45 63 43 32 66 32 42 85 30 48 106 46 28 39 86 110 50 10 26 70 76 46 33 51 64 52 83 78 27 70 42 34 32 63 65 27 90 38 52 76 (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 Hy = population mean minutes late for delayed Company A flights and Hy = population mean minutes late for delayed Company B flights.) Holt-Hyco HHHy = 0 Hoi H₂-Hy so HH - H2> 0 o Hot Hi-H₂O Hill - H₂=0 Moi - Mz 20 HiMi-1₂0 o Ho: My - 12 = 0 Ho Ho - H20 (b) What is the sample mean number of minutes late for detayed flights for each of these two airlines? Company A Company B min min (C) Calculate the test statistic (Round your answer to three decimal places.) What is the pevalue? (Round your answer to four decimal places.) D-value Using a 0.05 level of significance, what is your conclusion? Reject There is statistical evidence that one airline her than
(c) Calculate the test statistic. (Round your answer to three decimal places.) What is the p-value? (Round your answer to four decimal places.) p-value = Using a 0.05 level of significance, what is your conclusion? Reject Ho. There is statistical evidence that one airline does better than the other in terms of their population mean delay time. Do not reject Hy. There is no statistical evidence that one airline does better than the other in terms of their population mean delay time. Do not Reject Hy. There is statistical evidence that one airline does better than the other in terms of their population mean delay time. O Reject Ho. There is no statistical evidence that one airline does better than the other in terms of their population mean delay time,
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