A research agency analyzes load factors (passenger-miles as a percentage of available seat-miles) for commercial airlines....

 

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A research agency analyzes load factors (passenger-miles as a percentage of available seat-miles) for commercial airlines. The accompanying boxplots summarize the data from 2000 to 2011 for international fights. Look at the accompanying boxplots by month. Two outliers are evident; one in September and one in October. Both of these are for the year 2001 and reflect the terrorist attacks of 9/11. Should the data for these months be set aside in any overall analysis of load factor patterms by month? Explain. Click here to view the boxplots of International load factors. Choose the correct answer below. O A. Air travel immediately after the events of 9/11 was not typical of air travel in general. In order to analyze monthly pattern, it might be best to set these months aside. B. Air travel immediately after the events of 9/11 was typical of air travel in general. In order to analyze monthly pattem, it might be best to leave these months in the data. OC. Air travel immediately after the events of 9/11 was not typical of air travel in general. In order to analyze monthly pattern, it might be best to leave these months in the data. D. Air travel immediately after the events of 9/11 was typical of air travel in general. In order to analyze monthly pattern, it might be best to set these months aside. Click to select your answer. Boxplots of Load Factors A research agency analyzes load factors (passenger-miles as a percentage of available seat-miles) for commercial airlines. The accompanying boxplots summarize the data from 2000 to 2011 for international fights. Look at the accompanying boxplots by month. Two outliers are evident; one in September and one in October. Both of these are for the year 2001 and reflect the terrorist attacks of 9/11. Should the data for these months be set aside in any overall analysis of load factor patterms by month? Explain. Click here to view the boxplots of International load factors. Choose the correct answer below. O A. Air travel immediately after the events of 9/11 was not typical of air travel in general. In order to analyze monthly pattern, it might be best to set these months aside. B. Air travel immediately after the events of 9/11 was typical of air travel in general. In order to analyze monthly pattem, it might be best to leave these months in the data. OC. Air travel immediately after the events of 9/11 was not typical of air travel in general. In order to analyze monthly pattern, it might be best to leave these months in the data. D. Air travel immediately after the events of 9/11 was typical of air travel in general. In order to analyze monthly pattern, it might be best to set these months aside. Click to select your answer. Boxplots of Load Factors

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