Final answer:
The provided information does not give a specific maximum waiting time for Advanced Call Ahead customers, but it suggests that when restaurants efficiently manage these priorities, customers may wait only minutes to be seated. The wait times can vary depending on restaurant policy, time of day, and customer volume.
Step-by-step explanation:
The question regarding the maximum time Advanced Call Ahead customers wait after arriving at the restaurant is not directly answered by the provided information. However, understanding restaurant operations and the concept of Advanced Call Ahead, in general, suggests that these customers should usually have minimal waiting times. If the restaurant efficiently manages these priorities, Advanced Call Ahead customers may only wait a few minutes to be seated upon arrival. Yet, the exact maximum wait time can vary based on the restaurant's policy, the time of day, and current customer volume.
From the given information, we can deduce that with an average of one customer arriving every two minutes, it would typically take six minutes for three customers to arrive when the store first opens. If the restaurant is reasonably empty at that time, Advanced Call Ahead customers should expect to be seated promptly. During periods of higher traffic indicated by friends taking over five minutes to find seating, the wait time could be longer. However, these details are more reflective of general customer flow rather than specifics regarding Advanced Call Ahead service. The provided probabilities and cell phone contract examples are not directly related to the restaurant wait times question.