A company has installed 3288 flow meters throughout an extensive sewer system. Unknown to the company, 592
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(a) What is the probability that the company's estimate of p will be within 0.1 of the correct value?
(b) Suppose that 2012 of the meters are easily accessible, whereas the other 1276 meters are not easily accessible. In addition, suppose that only 184 of the easily accessible meters are operating outside acceptable tolerance limits. If the company's sample of 20 meters is biased due to the fact that the meters were randomly chosen from the subset of easily accessible meters, what is the probability that the company's estimate of p will be within 0.1 of the correct value?
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Related Book For
Probability And Statistics For Engineers And Scientists
ISBN: 9780495107576
3rd Edition
Authors: Anthony Hayter
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