Airlines have increasingly outsourced the maintenance of theirplanes to other companies. A concern voiced by critics is that themaintenance may be less carefully done so that outsourcing createsa safety hazard. In addition, flight delays are often due tomaintenance problems, so one might look at government data onpercent of major maintenance outsourced and percent of flightdelays blamed on the airline to determine if these concerns arejustified. This was done, and data from 2005 and 2006 appeared tojustify the concerns of the critics. Do more recent data stillsupport the concerns of the critics? Here are data from 2014:
| Airline | Outsource percent | Delay percent | Airline | Outsource percent | Delay percent |
|---|
| Alaska | 51.051.0 | 10.3510.35 | Jet Blue | 68.468.4 | 19.9319.93 |
| American | 29.429.4 | 20.3220.32 | Southwest | 58.258.2 | 28.4728.47 |
| Delta | 36.736.7 | 14.4814.48 | United | 52.652.6 | 23.4623.46 |
| Frontier | 46.346.3 | 21.4221.42 | US Airways | 54.354.3 | 13.6813.68 |
| Hawaiian | 78.478.4 | 5.065.06 |
Make a scatterplot with outsourcing percent as ?x and delaypercent as ?.
Find the correlation ?r with and without Hawaiian Airlines.Enter your answers rounded to four decimal places.
