Answered: (b) Find an 80% confidence interval and…

Name: n June 2012, a Gallup Poll reported that 1503 out of a total of 2004 U
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Description: n June 2012, a Gallup Poll reported that 1503 out of a total of 2004 U.S. adults said they had a “great deal of confidence” or “quite a lot of confidence” in the military. Assume the conditions for using the CLT are met. PLEASE ONLY DO B,C, D please

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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n June 2012, a Gallup Poll reported that 1503 out of a total of 2004 U.S. adults said they had a “great deal of confidence” or “quite a lot of confidence” in the military. Assume the conditions for using the CLT are met.

PLEASE ONLY DO B,C, D please and thank you

(a) Find a 95% confidence interval for the proportion that has a great deal of confidence in the military and interpret this interval.

(b) Find an 80% confidence interval and interpret it.

(d) How would a 90% interval compare with the others in width?

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