Pick any topic you are interested in, which can be answered in the form of a simple least squares regression. It can be any topic. For example: Is there a relationship between higher abortion rates and the crime rate going down? Does the number of hotdogs sold in Fenway Park explain Josh Beckett's ERA from 2001 to 2011?
Run a regression analysis. If you are using an analysis tool other than Excel, put your data into Excel and "Save As..." a comma-separated values (.csv) spreadsheet. Load the data and to finish the analysis.
Why is least squares regression a good method to answer your question?
Describe where your data comes from (Sources). Give some descriptive statistics for both variables.
Graph of the data with regression line.
Interpret the intercept, slope, coefficient of determination of the regression line. Is there a significant relationship?
Predict the response variable for one unit outside of the range of your data.
Conclusion - be sure that your conclusion is backed up by your data/analysis.