Answered: In a survey of 40 students at a local…

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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In a survey of 40 students at a local high school, 21 support changing the school's mascot. Find the 80%80%confidence interval for the true population proportion of students who support changing school's mascot.

Choose the correct confidence interval and critical value used in the calculation.

(0.455,0.595)(0.455,0.595) (Zc=0.842Zc=0.842)
(0.425,0.625)(0.425,0.625) (Zc=1.282Zc=1.282)
(0.425,0.625)(0.425,0.625) (tc=1.3036tc=1.3036)
(0.395,0.655)(0.395,0.655) (Zc=1.645Zc=1.645)
(0.375,0.675)(0.375,0.675) (Zc=1.96Zc=1.96)

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