A survey was conducted to see what percentage of American adults would say "Yes" to the question, "Have you ever beendecapitated?". The study revealed that 15% of American adults would say that they have been decapitated.If we choose 20 American adults at random, what is the probability that at least one of them would say that they have beendecapitated?1-20.850.150.03880.9612

given data P(say that they have been decapitated) = p = 0.15sample size n = 20P(atleast one say that…

Answered: A survey was conducted to see what…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A telemarketing firm conducts surveys with a 40% historical response rate. What is the probability that in a new sample of 400 telephone calls at least 150 individuals will respond. In other words, what is the probability that the sample proportion will be at least 150/400?
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a Pew research center surveyed ask adults in the United States which technology would be very hard to give up the following responses were obtained internet 70% smartphone 60% email 30% and landline 25%, If 2,000 owners of smartphones were surveyed what is the expected number that will report that it would be very hard to give up?
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