00321nam a2200109Ia 4500008004100000040003800041100002100079245003700100260004000137300001800177653001600195211215s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aLehmann, E . L . 0aTesting Statistical Hypothesis .  bJohn Wiley & sons , Inc .aNew York  aXiii,369 p p.  aMathematics