Imagine you are a researcher interested in cross-cultural differences in child rearing. You have data on the distance measured between mother and child for two different countries: Belize and Samoa.
You are a researcher interested in differences in child rearing practices in Belize and Samoa. You believe Samoan mothers, on average, are more likely to let their children roam whereas mothers in Belize are more likely to keep their children close at hand. You have data for a sample of 4-year old children from each country regarding how far each child is, on average, from his or her mother at a predetermined observation time. How would you proceed?