The authors of the paper Racial Stereotypes in Childrens Television Commercials (Journal of Advertising Research [2008]: 8093)
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Based on the 2000 Census, the proportion of the U.S. population falling into each of these four ethnic groups are .177 for African-American, .032 for Asian, .734 for Caucasian, and .057 for Hispanic. Do the data provide sufficient evidence to conclude that the proportions appearing in commercials are not the same as the census proportions? Test the relevant hypotheses using a significance level of .01.
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1 Let p 1 p 2 p 3 and p 4 be the proportions of appearances of the ...View the full answer
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