An airline wants to select a computer software package for its
reservation system. Four software packages (1, 2, 3, and 4) are
commercially available. The airline will choose the package that
bumps as few passengers, on the average, as possible during a
month. An experiment is set up in which each package is used to
make reservations for 5 randomly selected weeks. (A total of 20
weeks was included in the experiment.) The number of passengers
bumped each week is...