1. A researcher is interested in studying the relationship between whether a mother smokes during pregnancy and the birth weight of the child in total ounces. Mothers were categorized as either smoking or non-smoking. Which statistical procedure would one apply to determine whether there was a significant difference in the birth weights of children born to smoking mothers versus non-smoking mothers?

1. A researcher is interested in how support for marijuana legalization varies between genders. The independent variable is "gender" and the dependent variable takes one of three positions on legalization of marijuana (never support, support for medical use only, support for medial or recreational use).What statistic would one employ to look at this potential relationship?

1. A social researcher wants to test the hypothesis that college students who drink a lot while text messaging have more key strokes than those who do not drink while they text. The social researcher studies 50 drinking texters and 50 non-drinking texters. Which statistical procedure would one apply to determine whether there was a significant difference in the texting errors between drunk texters and non-drunk texters?

1. A researcher is interested in analyzing the relationship between the percentage of a country that is urbanized and the average male life expectancy in that country. What statistical procedure(s) should the researcher use to see if there is an association between percent of the country that is urbanized and male life expectancy?

1. A social researcher is interested in studying whether social class influences life expectancy. The researcher split social class into three categories: upper class, middle class, and lower class. Life expectancy was measured in years. Which statistical procedure would one apply to testing for differences between social class and life expectancy?

1. A sports fan is interested in seeing if the temperature outside is associated with the number of runs scored in a baseball game. So the fan records the temperature at game time and the number of total runs scored in the game. Which statistic would investigate the degree of relationship between game-time temperature and runs scored in a baseball game?

1. A social researcher is interested in studying the relationship between religious affiliation and years of education. The researcher split social class into four Catholics, Protestants, Jews, and Muslims. Education was measured in years. Which statistical procedure would one apply to testing for differences between religious affiliation and years of education?

1. A professor is interested in knowing if the number of absences a student has in the semester is a good indication of how well a student does on the final exam. At the end of the year, the professor compares absence rates and exam grades (as a raw score) for eight students. Which statistic would investigate the degree of relationship between absences and final exam performance?

1. A social researcher is interested to see whether TV depictions of torture influence support torture. She conducts an experiment where each participant is randomly assigned to watch one of three videos (torture effective, torture ineffective, no torture). She then compares support for torture (measured on a 0 to 100 scale) after watching the video. What statistic should she use for her analyses?

1. A social researcher is interested in studying the relationship between gender and political party affiliation (Democrat, Republican, or Other). What statistic would one employ to look at this potential relationship?