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Question: A pen company averages 1.2 defective pens per carton produced (200 pens). The number of defects per carton is Poisson distributed.
a. What is the probability of selecting a carton and finding no defective pens?
b. What is the probability of finding eight or more defective pens in a carton?
c. Suppose a purchaser of these pens will quit buying from the company if a carton contains more than three defective pens. What is the probability that a carton contains more than three defective pens?
What is this month's process yield? (ii) If particles for which X 350 μm are classi?ed as "?nes" and can be recycled, how much of the material made during this month falls into this category?
Find the probability of randomly selecting 2 mathematics books and 3 physics books from a box containing 4 mathematics books and 8 physics books. Show your method and your answer.
Explain the purpose of the chi-square test for independence. Provide some practical examples where this test might be used in business.
1. a large tank of fish from a hatchery is being delivered to a lake. the hatchery claims that the mean length of fish
Situation and Data: An electronic component manufacturer you work for has to select a new supplier of 2K (2000 ohm) resistors. An outside consulting group has assisted your design group in reducing the choices down to two suppliers, Ulti-Resist an..
Identify one dimension that would find excess capacity unattractive. Provide 2-3 sentences explanation for each.
On the basis of this confidence interval, can we conclude that more than 50% of all students favor more coed dorms? Explain. Can we reject the possibility that the population proportion is .60?
Based on anthropological reports in which the status of women is scored on a 10-point scale, the mean and standard deviation across many cultures are known. A new culture is found in which there is an unusual family arrangement.
Standard deviation of 424 and 155 respectively. at the .05 level of significance, test the claim that the new version has standard deviation equal to that of the past version.
let f be a forest of order n containing k connected components. prove that f contains n-k
When testing the executive's (using a 1% level ofsignificance), what can you conclude concerning the null hypothesis? Reject the null hypothesis or Fail to reject the null hypothesis?
(a) lie below -1.96Z if 1000 scores are plotted in the distribution? (b) are plotted between -1.96Z and +1.96Z ?
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