(p. 53) Leonard has been commuting to New York City on the Long Island Railroad for ten years. Every morning he takes the 7:00 a.m. train that is scheduled to arrive in New York at 8:15 a.m. from Huntington, a suburb of New York. Although Leonard would like the train to arrive in New York on time, he knows from his experience as a commuter that it is more likely the train will be 5 minutes late. Leonard's expectation that his train will be 5 minutes late reflects his _________ level of service for the Long Island Railroad.