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1. Two manufacturing plants produce similar parts. Plant 1 produces 1,000 parts, 100 of which are defective. Plant 2 produces 2,000 parts, 150 of which are defective. A part is selected at random and found to be defective. What is the probability that it came from plant 1?
2. A lot of 100 semiconductor chips contains 20 that are defective. Two chips are selected at random, without replacement, from the lot.
(a) What is the probability that the first one selected is defective?
(b) What is the probability that the second one selected is defective given that the first one was defective?
(c) What is the probability that both are defective?
The original simple form of the Connecticut state lottery (ignoring a few gimmicks) awarded the following prizes for each 100,000 tickets sold. The winners were chosen by drawing tickets at random. If you hold one ticket in this lottery, what is y..
The comparison distribution at which the null hypothesis should be rejected, (b) the Z score on the comparison distribution for the sample score, and (c) your conclusion. Assume that all populations are normally distributed.
This result applies no matter what the shape of the probability distribution from which the samples are taken. Central Limit Theorem: How Large a Sample?
You should address the pertinent areas of consideration.Analyze the considerations and determine their relative importance.Investigate all the possibilities of how the quantitative methods are used in the case study.
a sample of sales records for jmk shows the average revenue per day is 4275 with a standard deviation of 720 following
is the following a probability distribution? if not identify the requirement that is not satisfied.x px0 0.2291 0.1552
The hypothesis that the samples came from identical populations cannot be rejected, the T value is 16.5 greater that the lower limit.
How many games would the conference commissioner have to schedule each year - The ABCD football association is considering a Super Ten Football Conference. The top 10 football teams in the country, based on past records, would be members of the Sup..
What are the mean value and standard deviation of the number among these 15 that are from the second section? What are the mean value and standard deviation of the number of projects not among these first 15 that are from the second section?
Speed of cars travelling on I-85 in Gaston County is normally distributed with average speed (µ) of 66 MPH and standard deviation (σ) of 8 MPH.
The number of bombardment necessary to achieve the disintegration of a certain nucleus is assumed to have the distribution above. In one sequence in which b bombardments are available, of these have already failed to disintegrate the nucleus. What..
If you were an auditor and observed more than 30% with improper documentation, what would you conclude about the firms claim that only 20% suffered from improper documentation and why?
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