Lots of kitchen knives are inspected by a sampling plan that uses a sample of size 20

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Lots of kitchen knives are inspected by a sampling plan that uses a sample of size 20 and the acceptance number c = 1. What is the probability of accepting a lot with 1%, 2%, 10% defectives (knives with dull blades)? Use Table A6 of the Poisson distribution. Graph the OC curve.image

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