Access the data about airborne times and distances of Delta Airlines flights, which are available at MyMathLab and at the Pearson Downloadable Student Resources for Math & Stats website.
a. Construct a scatterplot.
b. Why does the scatterplot consist of vertically aligned clumps of data points?
c. On the basis of just the scatterplot, guess whether Delta offers more routes that are less than 1000 miles or greater 1000 miles. On the basis of just the scatterplot, why is it not possible to be sure?
d. For a given distance other than 849 miles, does an outlier tend to lie above or below the other data points? What does that mean in this situation? From what you know about flights, why does that make sense?
e. For the distance 849 miles, there are a large number of outliers that lie below the other data points. By searching the data set, find the three-letter code for the destination airport for those flights. Research online to determine the name and location of the airport.