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A particular engine bearing plant has three manufacturing lines .For line A , the porportion of output bearing that are defective is 0.01 , where as for line B the porportion is 0.016 and for line c it is 0.025. Line A produces 30% of the plants output , whereas line B produces 45% and C poduces 25%. of te output If a samle n=100 bearings is inspected that sample and found one defective bearing, what is the prbability that the sample was taken from output of line B.
In a random sample of 120 households, what is the probability that greater than 20 households, but, less than 35 households receive a retirement income?
Based on a study of heights of men and women who do gymnastics, a researcher concludes that the exercise from playing gymnastics causes people to become shorter. Do you agree with this conclusion?
If the names of these 100 people in the building are still unknown but a room is allowed to lodge one tenant at most , then are there how many ways of room occupation?
Determine fraction of employees cost between $1,500 and $2,000 per year?
Let n = 269 represent the number of ticket reservations. Let r represent the number of people with reservations who show up for the flight. What expression represents the probability that a seat will be available for everyone who shows up holding ..
Of the 600 employees, 400 had college degrees, 100 were single, and 60 were single college graduates. The probability that an employee of the hospital is single or has a college degree is?
What is a "success" in this situation and what is probability of success on a single trial?
use the definition of random selection of points in an interval in section 1.7 a bus arrives at a station everyday at a
Suppose that, in a sample of 200, we observe 140 successes. Is this sufficient evidence at the 1% significance level to indicate the the population proportion of successes is greater than 65%
What are the most common reasons you would select a non-parametric test over the parametric alternative?
At the .01 significance level, is there a difference in the use of the four entrances?
choo choo paper company produces papers of various thickness. a random sample of 256 cuts had a mean thickness of 30.3
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