In a recent poll, 44% of survey respondents said that, if they only had one child, they would prefer the child to be a boy. Suppose you conducted a survey of 150 randomly selected students on your campus and find that 74 of them would prefer a boy. (a) Use the normal approximation to the binomial to approximate the probability that, in a random sample of 150 students, at least 74 would prefer a boy, assuming the true percentage is 44%. (b) Does this result contradict the poll? Explain. (a) The probability that at least 74 students would prefer a boy is (Round to four decimal places as needed.) ec
In a recent poll, 44% of survey respondents said that, if they only had one child, they would prefer the child to be a boy. Suppose you conducted a survey of 150 randomly selected students on your campus and find that 74 of them would prefer a boy. (a) Use the normal approximation to the binomial to approximate the probability that, in a random sample of 150 students, at least 74 would prefer a boy, assuming the true percentage is 44%. (b) Does this result contradict the poll? Explain. (a) The probability that at least 74 students would prefer a boy is (Round to four decimal places as needed.) ec
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
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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![In a recent poll, 44% of survey respondents said that, if they only had one child, they would prefer the child to be a boy.
Suppose you conducted a survey of 150 randomly selected students on your campus and find that 74 of them would
prefer a boy.
(a) Use the normal approximation to the binomial to approximate the probability that, in a random sample of 150
students, at least 74 would prefer a boy, assuming the true percentage is 44%.
(b) Does this result contradict the poll? Explain.
(a) The probability that at least 74 students would prefer a boy is
(Round to four decimal places as needed.)
ec](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9b1d98cf-a768-4464-b954-6506c05fcae4%2F2b33c3ac-b8fa-45cb-bfa4-54aa7f8c3760%2Fdv12yb_processed.jpeg&w=3840&q=75)
Transcribed Image Text:In a recent poll, 44% of survey respondents said that, if they only had one child, they would prefer the child to be a boy.
Suppose you conducted a survey of 150 randomly selected students on your campus and find that 74 of them would
prefer a boy.
(a) Use the normal approximation to the binomial to approximate the probability that, in a random sample of 150
students, at least 74 would prefer a boy, assuming the true percentage is 44%.
(b) Does this result contradict the poll? Explain.
(a) The probability that at least 74 students would prefer a boy is
(Round to four decimal places as needed.)
ec
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