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Name: A study suggests that about 80% of students have a job. Researchers ar
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Description: A study suggests that about 80% of students have a job. Researchers are planning a second study with a new sample of students. They'll use the new data to construct confidence intervals to estimate the # of students working a job. The researchers pla

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 study suggests that about 80% of students have a job. Researchers are planning a second study with a new sample of students. They'll use the new data to construct confidence intervals to estimate the # of students working a job. The researchers plan on using a confidence level of 90% and want a margin of error of no more than + or - 1%.

If we assume p(with ^ on top)= 0.80, what is the smallest sample size required to obtain the desired margin of error?

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