37. The article Gender Differences in Individuals with Comorbid Alcohol Dependence and Post-Traumatic Stress Disorder (Amer. J. Addiction, 2003:

412—423) reported the accompanying data on total score on the Obsessive-Compulsive Drinking Scale

(OCSD).

Sample Sample Sample Gender Size Mean SD Male 44 19.93 7.74 Female 40 16.26 7.58 Formulate hypotheses and carry out an appropriate analysis. Does your conclusion depend on whether a signi cance level of .05 or .01 was employed?

(The cited paper reported P-value.05; presumably

.05 would have been replaced by .01 if the P-value were really that small.)