Working Defect
L1 900 100
L2 1850 150
P(D)=250/3000=1/12
P(W)=11/12
P(L1\D)=P(L1 and D)/P(D)
=100/250
=0.4
6) Two manufacturing plants produce similar parts. Plant 1 produces 1,000 parts, 100 of which are...
Two plants, A and B. ship appliances to a warehouse. Plant A produces 65% of the warehouse's inventory and plant B produces the rest of the warehouse's inventory. It is known that 4% of the appliances from plant A are defective and 8% of the appliances from plant B are defective. a) (5 points) A warehouse inspector randomly selects an appliance. What is the probability that the appliance is from plant B and not defective? b) (5 points) What is...
(12pts) Three plants, ci, c2 and C3 produce l5%, 50%, and 35% of a company's output, respectively. Additionally, each plant produces 1%, 2%, and 2% defective parts, respectively. (a) (6pts) When pulled from a warehouse, what is the probability that the defective part came from 4 plant C2? (b) (6pts) When pulled from a warehouse, what is the probability that the defective part came from plant Ca?
A company produces 1,100 refrigerators per week at three plants. Plant A produces 370 refrigerators per week, Plant B produces 285 refrigerators per week, and plant C produces 445 refrigerators per week. Suppose you know that 6% of the refrigerators produced at Plant A are defective, 4% of the refrigerators produced at Plant B are defective, and 3% of the refrigerators produced at Plant C are defective. a) What is the probability that a randomly selected refrigerator is defective? b)...
Twice as many automobile transmissions are made in Plant A than in Plants B and C. Equal numbers are made in Plants B and C. But all are stored in the same warehouse. Past experience has recorded 1.0 percent of transmissions from Plant A, 1.8 transmissions from Plant B, and 1.2 transmissions from Plant C are defective. Keep 4 significant digits. a) What is the probability a transmission selected at random from the warehouse is defective? b) A transmission is...
and 4. A company uses three plants to produce a new computer chip. Plant A produces chips. Plant B produces 45% of the chips. The rest of the chips are produced by plant C. Each plant has its own defective rate. These are: plant A produces 3% defective chips, plant B produces 1% defective chips, plant C produces 5% defective chips. Hint: draw a tree diagram. (a) Construct a tree diagram and write the appropriate probability on each of the...
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Factories A and B produce computers. Factory A produces 2 times as many computers as factory B. The probability that an item produced by factory A is defective is 0.012 and the probability that an item produced by factory B is defective is 0.04. A computer is selected at random and it is found to be defective. What is the probability it came from factory A?
The company has two machines that produce certain items. Machine 1 produces 40 % of the the items, and machine 2 produces 60% of the items. Machine 1 produces 3% of defective items and machine 2 produces 5% of defective items. a. The probability that a randomly selected produced item is defective is b. If a randomly selected item is found to be defective, probability that it is produced on machine 2 is
19. In a cross between a pure-breeding plant that produces tan lentils and a pure-breeding plant that produces gray lentils, all of the FI progeny plants produce brown lentils. When these are allowed to self-pollinate, the F2 plants are found to produce lentils in the following colors and ratios: F2 progeny: brown gray green tan 57 18 13 a. I poinl) What is the most likely phenotypic ratio being represented by the data above? b. (4 points) Prove (statistically) that...
Two different types of injection- moulding machines are used to form plastic parts. A part is considered defective if it has excessive shrinkage or is discoloured. Two random samples, each of size 300, are selected, and 15 defective parts are found in the sample from machine 1, and 8 defective parts are found in the sample from machine 2. Is it reasonable to conclude that both machines produce the same fraction of defective parts, using a 0.05, find the value...