Your name______________________

Your TA's name__________________

Your data set number______________

Lab B

Lab B (Chi-square)

Problem a:

Law school students and other students at a university are asked to complete a survey. The researcher knows the proportion of law students at the university [ p(Lawyers) ]. She wonders if the number of lawyers who complete the survey [ Obs(Lawyers) ] versus other students [ N - Obs(Lawyers) is what one would expect given this N and proportion of law students. Use the chi-square goodness of fit test to assess whether observations are consistent or inconsistent with expectations. In your response to the questions, use the information for Problem a in the data set number assigned to you by the teaching assistant.

Problem b:

Another researcher sends out surveys to students in the engineering school and the law school. She counts the number of survey-completers from each school who are male versus female, and wonders whether gender and school are related. In your response to the questions, use the information for Problem b in the data set number assigned to you by the teaching assistant.