Inspection errors for attributes in quality control

Every book should have a motivation and a goal. We would like to share with our readers some reasons which have led us to allot a considerable part of our time and effort to the production of this monograph. We believe this book to originate from two 'godfathers'. The first took the form of the following, apparently straightforward, problem posed to us in 1979 by Horton L. Sorkin (at that time in the Department of Accounting, University of Maryland at College Park). 'There are N accounts, D with mistakes and N - D mistake-free. The probability that an accountant detects that an account is erroneous is p (