for its ctudents (A Year Later, School Buses Sill Late" Boston Globe, October on a particularly woeful route Historically, the bus service on the route has The Boston public school district has had difficulty maintaining on-time bus service 5). Suppose the district develops a new bus schedul been, on average, 12 minutes late. After the schedule district claimed that the schedule adjustment was an improvement-studen minutes. Which of the following can be used to determine whether the schedule help combat chronic lateness adjustment,the first 36 runs were an average of eight minutes late. As a result, the Boston public school ts were not as late. Assume a population standard deviation for bus arrival time of 12 adjustment reduced the average lateness time of 12 minutes? Multiple Choice