A study compared personality characteristics between adult children of alcoholics and a control group matched on age and gender. For the 29. pairs of women, the authors reported a mean of 24.8 on the well-being measure for the children of alcoholics, and a mean of 29.0 for the control group. They reported 2.67 for the test com- paring the means. Assuming that this is the result of a dependent samples analysis, identify the df for the test statistic, report the P-value, and interpret.