A lot of software is available for quality control. The figure shows a printout from a simple package that takes data, suggests a sampling plan and shows the operating curve for this plan and the average outgoing quality. How does this compare with other software? What features do you think there should be?

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Pa (%) 120.00 Acceptance probability Pa (%) 120.00 Sampling Plan for Test Example: Singk Sampling for Attributes 01-01-2010 Plan 108.00 108.00 Given AQL Given RQL Desired producer's risk (alpha) Desired consumer's risk (beta) Lot size 1% 2.00 2.00 Recommended sampe size (n) Recommended acceptance number Resulted producer's risk (alpha) Resulted consumer's risk (beta) Resulted AQL 60.00 60.00 5.287 % 10.3631% 2.2914% 10 24.00 24.00 12.00 12.00 Test example Randomly choose 37 items from a lot of 10,000 and inspect them. If the number of defects is greater than 1 reject | AOQ(96) 02 345 6 78 Lot fraction defective (p in %) 9 10 Average outgoing quality AOQ (%) the lot, Otherwise accept the lot. 3.44 (37.1) AOQL-2.29% at ρ-441% 2.75 2.41 2.06 1.72 3.09 2.75 2.41 2.06 1,72 1,37 1,03 1,03 0.69 0,34 0 1 23 5 6 789 10 Lot fraction defective in %)