Mathematical statistics with applications / William Mendenhall, Richard L. Scheaffer, Dennis D. Wackerly. Mendenhall, William. Scheaffer, Richard L., joint author. Wackerly, Dennis D., 1945- joint author. Mathematical statistics. QA276 .M426 1981 519.5 19 MEM Includes bibliographies and index. Boston, Mass. : Duxbury Press, c1981. c1981. 1981 Text xiii, 686 p. : eng