Question: A recent article (D. J. Moritz and W. A. Satariano, J. Clin. Epidemiol., 46: 443-454 (1993)) investigated the relationship between stage of breast cancer at

A recent article (D. J. Moritz and W. A. Satariano, J. Clin. Epidemiol., 46: 443-454 (1993)) investigated the relationship between stage of breast cancer at diagnosis (local or advanced) and a woman's living arrangement. Of 144 women living alone, 41.0% had an advanced case; of 209 living with spouse, 52.2% were advanced; of 89 living with others, 59.6% were advanced. The authors reported the P-value for the relationship as .02. Reconstruct the analysis they performed to obtain this P-value.

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