The table shows 2008 GSS data on race and political party identification.

a. The chi-squared test of independence has X2 = 177.312. Carry out the five steps of the test, and interpret the result in the context of these variables.
b. Estimate the difference between black subjects and white subjects in the proportion who identify themselves as Democrats. Interpret. Does this seem to be a weak (practically insignificant), or a strong (practically significant), association? Explain.

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Party Identificatlon Race Black White Democrat Independent Republican 75 586 192 459 275 1516 471