APFIVE Chi-Square Test for Homogeneity Conclusion
A study investigated whether the distribution of smoking status—defined as current, former, or never—is the same for residents of four different neighborhoods. A chi-square test for homogeneity produced a test statistic of χ² = 19.6 and a p-value of 0.003. Based on these results, which of the following is the most appropriate conclusion?
A
Smoking status and neighborhood are independent variables
B
The four neighborhoods have equal proportions of smokers
C
The distribution of smoking status differs among the four neighborhood populations
D
Neighborhood determines an individual’s smoking status
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