The local newspaper is conducting a poll about how the residents of the city feelabout the traffic during rush hour. Of 666 people polled, 57 responded that they feltthat it was manageable or tolerable. Calculate the margin of error in order to find the95% confidence interval for the proportion of people who feel that the traffic duringrush hour is tolerable.

sample size(n)=666x=57confidence level=95%sample proportion()=

Answered: The local newspaper is conducting a…

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 surprising fact indicates that a small proportion of teens use a password on their mobile device. A poll chooses a simple random sample of 120 teens and asks if they use a password on their mobile device. The results showed that 56 of teens in our sample used a password on their mobile device. Find a 90 % confidence interval for the proportion of teens who use a password on their mobile device. Interpret your confidence interval.
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