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.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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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.
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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