The U.S. Census Bureau compiles data on the U.S. population by region and race and publishes its findings in Current Population Reports. Independent simple random samples of residents in the four U.S. regions gave the following data on race.

At the 1% significance level, do the data provide sufficient evidence to conclude that a difference exists in race distributions among the four U.S. regions?

Race Northeast Midwest South West White BlackOther Total 113 136 7 216 135 600 93 118 167 42 113 491 14 7 15 Total 77 32