=+3.20 ● The article “A Nation Ablaze with Change” (USA Today, July 3, 2001) gave the accompanying data on percentage increase in population between 1990 and 2000 for the 50 U.S. states. Also provided in the table is a column that indicates for each state whether the state is in the eastern or western part of the United States (the states are listed in order of population size):

Percentage State Change East/West California 13.8 W Texas 22.8 W New York 5.5 E Florida 23.5 E Illinois 8.6 E Pennsylvania 3.4 E Ohio 4.7 E Michigan 6.9 E New Jersey 8.9 E Georgia 26.4 E North Carolina 21.4 E Virginia 14.4 E Massachusetts 5.5 E Indiana 9.7 E Washington 21.1 W Tennessee 16.7 E Missouri 9.3 E Wisconsin 9.6 E Maryland 10.8 E Arizona 40.0 W Minnesota 12.4 E Louisiana 5.9 E Alabama 10.1 E Colorado 30.6 W Kentucky 9.7 E South Carolina 15.1 E Oklahoma 9.7 W Oregon 20.4 W Connecticut 3.6 E Iowa 5.4 E Mississippi 10.5 E Kansas 8.5 W