%0 Journal Article %A Saralees Nadarajah %T On the use of difference of two proportions %J Applicationes Mathematicae %D 2009 %P 441-452 %V 36 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am36-4-4/ %R 10.4064/am36-4-4 %G en %F 10_4064_am36_4_4