TY - BOOK AU - Anderson, David R. AU - Sweeney, Dennis J. AU - Williams, Thomas A. TI - Statistics and management science for executive decision making SMS 520 SN - 0314122850 U1 - 519.5 1st PY - 1997/// CY - New York PB - West publishing company KW - Developing null and alternative hypotheses KW - tests about a population mean ER -