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

question 115

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.At the 1% significance level,does the evidence support the Boston public schools' claim?

• A) No,because the p-value is greater than α.
• B) Yes,because thep-value is greater than α.
• C) No,because the value of the test statistic is less than the critical value.
• D) Yes,because the value of the test statistic is less than the critical value.

Grasp the concept of absolute and relative references in formulas and named ranges.

Recognize the significance of workbook and worksheet protection options for data security.

Know how to manage user interface configurations and user account settings.

Understand the use of comments, notes, and track changes to collaborate on Excel workbooks.

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Definitions:

Men

Adult human males.

Lifetime Risk

Lifetime risk is the probability of an individual developing a certain disease or condition over the course of their lifetime, taking into account various demographic factors.

Cardiovascular Disease

A class of diseases that involve the heart or blood vessels, including coronary artery disease, hypertension, and stroke.

Women

Adult human females.