Business statistics in practice

gan Richard T. O\'Connell, Emily S. Murphree, Steven C. Huchendorf, Dawn C. Porter, Patrick J. Schur
Cyhoeddwyd 2011

Essentials of business statistics

gan Richard T. O\'Connell, Emily S. Murphree, Bruce L. Bowerman, J. B. Orris, Steven C. Huchendorf, Dawn C.Porter, Patrick J.Schur
Cyhoeddwyd 2012