As a regional sales manager, Nora Burke travels frequently and relies on her cell phone to keep

Question:

As a regional sales manager, Nora Burke travels frequently and relies on her cell phone to keep up to date with clients. She has tried three different service providers, Airway, Bellular, and CyCom, with varying degrees of success. The number of failures in a typical eight-hour day and the average time to regain service is shown below. Nora€™s contract is up for renewal. Which cellular service should sheuse?