Choose either 2 2 contingency table shown below (males or females). Research question: At =

Choose either 2 × 2 contingency table shown below (males or females). Research question: At α = .005, is smoking independent of race? (Smoking rates are from Statistical Abstract of the United States, 2001, pp. 16 and 12, applied to hypothetical samples of 500.)

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Smoking by Race for Males Aged 18-24 Row Total Smoker 145 15 160 Nonsmoker White Black Col Total 60 340 Smoking by Race for Females Aged 18-24 Race White Biack Col Total Smoker Nonsmoker 299 78 377 Row Total 415 85 500 116 123