In recent years airlines have been subjected to various forms of criticism. An executive of Airline...
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In recent years airlines have been subjected to various forms of criticism. An executive of Airline X has taken a quick poll of 16 regular airline passengers. Each passenger is asked to rate the airline he or she last flew on. The ratings were on a 7-point scale where 1 = poor and 7= very good. Of the 16 respondents, six last flew on Airline X and the remainder flew on other airlines. The ratings are shown below. Can the executive conclude from these data with a = .05 that Airline X is more highly rated than the other airlines? Please observe that ETA1 is the median of Airline X and ETA2 is the median of other Airlines Ratings of Airlines Airline X 6 4 5 6 5 3 Other Airlines 5 3 3 2 3 4 3 5 3 1 In recent years airlines have been subjected to various forms of criticism. An executive of Airline X has taken a quick poll of 16 regular airline passengers. Each passenger is asked to rate the airline he or she last flew on. The ratings were on a 7-point scale where 1 = poor and 7= very good. Of the 16 respondents, six last flew on Airline X and the remainder flew on other airlines. The ratings are shown below. Can the executive conclude from these data with a = .05 that Airline X is more highly rated than the other airlines? Please observe that ETA1 is the median of Airline X and ETA2 is the median of other Airlines Ratings of Airlines Airline X 6 4 5 6 5 3 Other Airlines 5 3 3 2 3 4 3 5 3 1
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