Survivor Statistical Research Group “We get the job done, even if it kills us.” Welcome! Who is Survivor SRG? Brendan Biamon, Matthew Carroll, Samira Fazel, Jesse Safir Survivor SRG is a data mining and management organization that uses SAS software and programming to provide statistical data of value. In other words, we look for correlations between disparate data sets in an attempt to map out previously undiscovered relationships. What is Survivor SRG?

Survivor Statistical Research Group “We get the job done, even if it kills us.” Problems & Objectives Survivor SRG is looking at crimes in the U.S. and other currently non-related data in an attempt to find meaningful correlations. Establishing such relationships can help in efforts to lower these crimes and may offer insight into criminal behaviors. We chose ten different data sets to see if we could find any correlations, whether they be significant or not.

Survivor Statistical Research Group “We get the job done, even if it kills us.” The “Crime” Definitions The seven categories of crimes Survivor SRG used are those that the U.S. Federal Bureau of Investigation tracks. They are: Assault Burglary Larceny Murder Rape Robbery Automobile Theft

Survivor Statistical Research Group “We get the job done, even if it kills us.” Our Independent Variables We want to see if any of the following categories of information have possible relationships to the seven categories of crimes: Divorce by actual numbers. Income per capita. Internet usage and purpose. Driver’s License totals by sex. Mental Health expenditure by total dollar amount. Population concentrations by square mileage. Annual Precipitation. Unemployment rates. Van registration.

Survivor Statistical Research Group “We get the job done, even if it kills us.” Crime Data from the Federal Bureau of Investigations Divorce Data from the U.S. CDC Income Data from the U.S. Dept. of Commerce, Bureau of Economic Analysis Internet Usage Data from the U.S. Dept. of Commerce: License Data from U.S. Census Mental Health Data from the U.S. Department of Health and Human Services SAMHSA Precipitation Data from the U.S. Dept. of Commerce, NOAA Square-mileage data from Enchanted Learning Unemployment Data from the U.S Bureau of Labor Statistics Van Ownership Data from U.S. Census The Data Sources

Survivor Statistical Research Group “We get the job done, even if it kills us.” PROC Methodology Proc Chart Proc Gchart Proc Print Proc Plot Proc Corr (using EG) Proc Reg The REG procedure fits linear regression models by least-squares. Output: Proc Stepwise – forward; backward; stepwise

Survivor Statistical Research Group “We get the job done, even if it kills us.” Rules & Assumptions of Multiple Regression The independent variables can predict the dependent variable, but the dependent variable cannot be used to predict the independent variables. It is a one-way analysis. Independent variables should be justified theoretically. Independent variables selected should have strong correlations with the dependent variable but only weak correlations with other independent variables. Each independent variable has the same relationship with the dependent variable at each value of other independent variables. Dependent variables' scores come from a normal distribution.

Survivor Statistical Research Group “We get the job done, even if it kills us.” When do you use Multiple Regression? Multiple regression is used when you want to determine what variables contribute to the explanation of the dependent variable and to what degree. A common analysis is stepwise regression. In forward stepwise regression, independent variables are entered one at a time to analyze how much each one adds to the explanation of the dependent variable. In backward stepwise regression, independent variables are removed one at a time and the effect on "R" (overall explanation of the dependent variable) is evaluated.

Survivor Statistical Research Group “We get the job done, even if it kills us.”

Survivor Statistical Research Group “We get the job done, even if it kills us.” Appendices Online Resource Library: Our original data sources and SAS program sets Our SAS program code Our Project and results in total.