Applied elementary statistics / Richard I. Levin, David S. Rubin. Levin, Richard I. Rubin, David S., joint author. Statistics. QA276.12 .L48 1980 519.5 LEA Includes index. Bibliography: p. 571-572. Englewood Cliffs, N.J. : Prentice-Hall, c1980. c1980. 1980 Text x, 579 p. : eng