Question: ACHIEVEMENT CHECK Knowledge/ Thinking/Inquiry/ Understanding Problem Solving Communication Application 13. A calculator manufacturer checks for defective products by testing 3 calculators out of every lot

ACHIEVEMENT CHECK Knowledge/ Thinking/Inquiry/ Understanding Problem Solving Communication Application 13. A calculator manufacturer checks for defective products by testing 3 calculators out of every lot of 12. If a defective calculator is found, the lot is rejected. a) Suppose 2 calculators in a lot are defective. Outline two ways of calculating the probability that the lot will be rejected. Calculate this probability. b) The quality-control department wants to have at least a 30% chance of rejecting lots that contain only one defective calculator. Is testing 3 calculators in a lot of 12 sufficient? If not, how would you suggest they alter their quality-control techniques to achieve this standard? Support your answer with mathematical calculations

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