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Unformatted text preview: UF-ESI-6321 UF-ESI-6321-02-10.xmcd page 1 of 1 2-10. A hardware store has received two shipments of halogen lamps. The first shipment contains 100 lamps, 4% of which are defective. n1 := 100 p1 := 4% D1 := p 1 n 1 D1 = 4 The second shipment contains 50 lamps, 6% of which are defective. n2 := 50 p2 := 6% D2 := p 2 n 2 D2 = 3 Suppose that Emanuel picks a lamp (at random) off of the shelf and purchases it, and he later discovers that the lamp he purchased is defective. Is the defective lamp more likely to come from the first shipment or from the second shipment? D := D1 + D2 = 7 n := n 1 + n 2 = 150
D1 P1 := n D n D2 = 4 7 P2 := n D n = 3 7 Emanuel has more likely chosen a defective lamp from the first shipment. Luther Setzer 1 NASA Pkwy E Stop NEM3, Kennedy Space Center, FL 32899 (321) 544-7435 ...
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- Spring '07