The Boston Public School District Has Had Difficulty Maintaining On-Time

question 10

Multiple Choice

The Boston public school district has had difficulty maintaining on-time bus service for its students ("A Year Later,School Buses Still Late," Boston Globe,October 5,2011) .Suppose the district develops a new bus schedule to help combat chronic lateness on a particularly woeful route.Historically,the bus service on the route has been,on average,12 minutes late.After the schedule adjustment,the first 36 runs were an average of eight minutes late.As a result,the Boston public school district claimed that the schedule adjustment was an improvement-students were not as late.Assume a population standard deviation for bus arrival time of 12 minutes.Which of the following can be used to determine whether the schedule adjustment reduced the average lateness time of 12 minutes?

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Definitions:

Spontaneous Remission

The unexpected improvement or cure of a disease or condition without any medical intervention.

Willful

Showing a strong determination or willingness to do something, often implying a certain stubbornness or refusal to yield.

Cathartic

An emotional release or purification that brings about renewal or restoration, often used in the context of therapeutic settings.

Subjective Well-Being

An individual's self-assessment of their own happiness and satisfaction with life.