11.69 Josie Foster, president of Public Research, Inc., has asked for your assistance in a study of the occurrence of crimes in different states before and after a large federal government expenditure to reduce crime. As part of this study she wants to know if the crime rate for selected crimes after the expenditure can be predicted using the crime rate before the expenditure.

She has asked you to test the hypothesis that crime before predicts crime after for total crime rate and for the murder, rape, and robbery rates. The data for your analysis are contained in the data file Crime Study. Perform appropriate analysis and write a report that summarizes your results.