The mean of the commute time to work for a resident of a certain city is 28.8 minutes. Assume that the standard deviation of the commute time is 7.1 minutes to complete parts (a) through (c) (a) What minimum percentage of commuters in the city has a commute time within 2 standard deviations of the mean? % (Type an integer or a decimal.) (b) What minimum percentage of commuters in the city has a commute time within 2.5 standard deviations of the mean? What are the commute times within 2.5 standard deviations of the mean? The minimum percentage of commuters in the city that has a commute time within 2.5 standard deviations of the mean is % (Round to one decimal place as needed.) The commute times within 2.5 standard deviations of the mean are between and (Type an integer or a decimal. Use ascending order.) (c) What is the minimum percentage of commuters who have commute times between 7.5 minutes and 50,1 minutes? % (Round to one decimal place as needed.)