00450nam a2200145Ia 4500008004100000020001800041082001800059100001900077245005400096260005300150300000800203650003300211650003800244700002200282140316s9999    xx            000 0 und d  a0 13 352311 X  a519.5bLEV/BU  aLevine,David M  aBusiness statistics for quantity and productivity  aNew DelhibPrentice-Hall of India Pvt.Ltd.c1995  a771  aDescriptive summary measures  aregression and correlation models  aRamsey,Patricia P