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A transportation strategist wanted to compare the traffic congestion levels across four continents: Asia, Europe, North America, and South America. The file CongestionLevel contains congestion level, defined as the increase
a. At the 0.05 level of signification, is there evidence of a difference in the mean congestion level across continents?
b. if the results in (a) indicate that it is appropriate to do so, use the Tukey-Kramer procedure to determine which contains differ in congestion level
c. What assumption are necessary in (a)?
d. At the 0.05 level of significance, is there evidence of a difference in the variation of the congestion level across continents?
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Chapter 11 Solutions
EP BASIC BUS.STATS-ACCESS (18 WEEKS)
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillHolt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGALBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt
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