The number of new building permits can be a good indicator of the strength of a region€™s economic growth. The following table gives percentage increases over a four-year period for three geographical areas. Analyze the data. Let α = 0.05. What are your conclusions?

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Year EasterNorth Centra Southwest 2000 1.1 2001 1.3 2002 2.9 2003 3.5 0.1 0.8 1.1 1.3 0.9 1.0 1.4 1.5