A Harris Poll of 1002 randomly selected adults was conducted to examine how voters view their primary voting affiliation. The primary question was, “If you had to say which ONE group of potential voters you belonged to, what would you say?” (“How Important Is Group Solidarity In Politics And Elections?,” harrisinteractive.com). Suppose responses to the question are summarized by race/ ethnic group as shown in the table below:

Use a chi square test of independence to test the proposition that responses to the question are independent of race/ ethnic group. Use a significance level of 5% for your test.

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OBSERVED FREQUENCIES Response Member of One Race Supporter of Person in a Race/Ethnic One Political Particular or Ethnic Group Party Age Group Group Grp 1 Grp 2 Grp 3 Totals Totals 770 108 124 1002 476 276 37 45 358 18 38 13 580 64