Homework Help: statistics

Posted by ronald on Tuesday, March 13, 2012 at 10:36pm.

Choose either 2 ℅ 2 contingency table shown below (males or females). Research question: At
汐 = .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.) Smoking
Smoking by Race for Males Aged 18每24
Race Smoker Nonsmoker Row Total
White 145 280 425
Black 15 60 75
Col Total 160 340 500

Smoking by Race for Females Aged 18每24
Race Smoker Nonsmoker Row Total
White 116 299 415
Black 7 78 85
Col Total 123 377 500

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