SINGLE SAMPLING INSPECTION PLANS WITH SPECIFIED ACCEPTANCE PROBABILITY AND MINIMUM AVERAGE COSTS

Abstract : The purpose of the paper is to give a tabulation and discussion of properties of a system of single sampling attribute plans obtained by minimizing average costs under the restriction that a point on the OC-curve has been fixed. Three systems are studied corresponding to different restrictions: (a) The LTPD system with a fixed consumer's risk, P(P sub 2) =0.10, (b) The AQL system with a fixed producer's risk, Q(P sub 1)=0.05. (c) The IQL system with P(P sub 0)=1/2 for P sub 1< P sub 0< P sub 2. LTPD and AQL plans for a double binomial prior distribution may be found from the corresponding plans for a single binomial prior distribution by a suitable change of cost parameter. The solution of the minimization problem and corresponding tables are given for the three systems. The asymptotic properties of the solution are also studied.