Do single-parent families tend to be more impoverished than families with two parents? A family researcher studied a random sample of 35 one-parent and 65 two-parent families in a particular city. Families were asked whether their total family income fell below the poverty line. The table below shows the cross-tabulation of these two categorical variables: One-parent families Two-parent families Below poverty line 24 20 Above poverty line 11 45 Use the chi-square test to assess the null hypothesis that one- and two-parent families do not differ with respect to poverty at the .05 significance level