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Question: The file AirportRating contains the rating of


The file AirportRating contains the rating of large and medium size airports in the United States and Canada.
Source: Data extracted from N. Trejos, “Portland, Indianapolis Top Airport Rankings, USA Today, December 16, 2016, p. 4B.
For large and medium airports separately:
a. Compute the mean, median, and mode.
b. Compute the variance, standard deviation, range, coefficient of variation, and Z scores.
c. Are the data skewed? If so, how?
d. Based on the results of (a) through (c), what conclusions can you reach about the rating of large and medium size airports?

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