Business Statistics :  a decision-making approach / 
Groebner , David F. 
 - 5th ed 
 - New Jersey :  Pearson Education ,  2001. 
 - xxiv,821 p,: 
<br/><br/><label>ISBN: </label>0130108561 
<br/><br/><label>LC Class. No.: </label>HF1017  / .G76  2001