=+56. Economic growth, revisited. The U.S. Bureau of Economic Analysis provides information on the GDP in the United States by metropolitan area (www.bea.gov). The Bureau recently released figures that showed the percent change in real GDP by metropolitan area for 2004–2005.

Using the data in the following table, examine if there is independence of the growth in metropolitan GDP and region of the country. (Alaska and Hawaii are part of the West Region. Some of the metropolitan areas may have been combined for this analysis.)

GDP Growth Top Two Quintiles

(top 40%)

Bottom Three Quintiles

(bottom 60%) Total West (Far West, Southwest, and

 Rocky Mtn.)

62 46 108 Midwest (Great

 Lakes and Plains States)

9 87 96 Southeast 38 58 96 Northeast

(Mideast and New

 England States)

12 36 48 Total 121 227 348