This is a Spanish translation of the June, 4, 2014, version of UVA-OM-0549. The plant manager of the Edgcomb Metals facility at Troy, Virginia is confronted with complaints that the current driver wage system—a guaranteed eight-hour day with time and a half for overtime—rewards drivers who "take their time" on daily assigned delivery routes. To investigate these claims, the plant manager compiles data on total hours, number of miles, and number of stops for several delivery runs made by each of two drivers—one recognized as the best and most conscientious, and the other recognized as the slowest. A supplemental handout (OM-0576) contains the results of a regression analysis of the data to facilitate a comparison of the two drivers and to suggest a method for developing standard times. (The B case is OM-0562, and the C case is OM-0571.)