8. Commuting Times The U.S. Census Bureau reports that the average commuting time for citizens of both Baltimore, Maryland, andMiami, Florida, is approximately 29 minutes. To see if their commuting times appear to be any different in the winter, randomsamples of 40 drivers were surveyed in each city and the average commuting time for the month of January was calculated for bothcities. The results are shown. At the 0.05 level of significance, can it be concluded that the commuting times are different in thewinter?MiamiBaltimoreSample size4040Sample mean28.5 min 35.2 minPopulation standard deviation7.2 min9.1 min

Answered: Image /qna-images/answer/bd9baba5-c060-4a32-a47d-1e34fcdcac70.jpg

Answered: 8. Commuting Times The U.S. Census…

A Guide to SQL

9th Edition

ISBN:9781111527273

Author:Philip J. Pratt

Publisher:Philip J. Pratt

Chapter6: Updating Data

Section: Chapter Questions

Problem 7SCG

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