Week 4 5 Black, K. (2017). Business statistics for contemporary decision making (9th ed.) . Hoboken, NJ: John Wiley & Sons, Inc.Bryman, Alan. 2012. Social Research Methods. New York: Oxford University Press.Hakim, Catherine. 1982. Secondary Analysis in Social Research: A Guide to Data Sources and Methods with Examples. London; Boston: Allen & Unwin.