The factory workers in Dilovası are prone to a disease called Pneumonia. In a recent survey in a workplace in Dilovası, about 18% of the employees have been infected by it. Presume the same portion (rate) holds nationwide. Use the normal distribution and approximate the probability, out of a random sample of 450 workers, the number of workers that are prone to disease at present will be (a) 30 or more; (b) 28 or less.
The factory workers in Dilovası are prone to a disease called Pneumonia. In a recent survey in a workplace in Dilovası, about 18% of the employees have been infected by it. Presume the same portion (rate) holds nationwide. Use the normal distribution and approximate the probability, out of a random sample of 450 workers, the number of workers that are prone to disease at present will be (a) 30 or more; (b) 28 or less.
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:The factory workers in Dilovası are prone to a disease called Pneumonia. In a recent survey in a
workplace in Dilovası, about 18% of the employees have been infected by it. Presume the same
portion (rate) holds nationwide. Use the normal distribution and approximate the probability, out of
a random sample of 450 workers, the number of workers that are prone to disease at present will be
(a) 30 or more; (b) 28 or less.
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