Directions: Compose one null hypothesis and one alternative hypothesis for the following research topic and identify if the alternative hypothesis is one tailed or two tailed.1. Tracking shopping behavior at the point of purchase (2012) 2. Birds of a feather or do opposites attract? the impact of personality traits on constraint and homophily within social network (2017) 3. Immigration, Economic Hardships and their influence on anger and anxiety in preschool aged children (2017) 4. The potential effects of income inequality on the obesity problem in china (2016) 5. The role of labor protective institution in gender gap (2014)