Project Part II

_____ Confidence Intervals (10 points)

 Compute a 95% confidence interval for each of your quantitative varibles. Consider each qualitative variable as a binomial variable (only two possible answers).  For example, if you asked "What year are you?"  then group them into underclassmen or lowerclassmen.  Compute a 95% confidence interval for these binomial variables. Compute at least 3 two-variable confidence intervals.  For example, if you asked people their year and GPA, you might consider the difference in the average GPA of upperclassmen and lowerclassmen. You do not have to type your computations.  You can do them by hand and attach them as an appendix at the end of the report.

_____ Hypothesis Tests (10 points)

 Formulate at least 5 good hypotheses and test them.  At least 3 should be two-variable tests.  For example, you might test if the GPA of lowerclassmen is greater than the GPA of upperclassmen. You do not have to type your computations.  You can do them by hand and attach them as an appendix at the end of the report.

_____ Analysis of the Results (20 points)

 Discuss the sizes of your confidence intervals. Were any too large to be meaningful? If so, how many measurements (what should n be?) to find an interval small enough to be useful? Discuss each of the hypothesis tests you conducted. What did you find?  Was it what you expected? Why do you think that was the case? What are the real-world implications of your results?  Give any other particularly impressive observations.

_____ Report Format (5 points)

 Report looks professional and is well-written.  Spelling and grammar are correct.  It is written as a report, not a list of answers to questions. The report is well-organized and readable. Include any of the graphs or calculations you did for Part I that help illustrate your results. (In some ways, the goal of Part I was to get a feel for the data, while Part II tests your impressions and presents your complete results. Color and graphics used well.

_____ Baseline Total 45 points (out of 50)