A poll is taken in which 355 out of 500 randomly selected voters indicated their preferencefor a certain candidate.(a) Find a 99% confidence interval for p.

Given, x = 355 n = 500 P = x/n = 355/500 = 0.71 Point estimate, P = 0.71 1-P = 1-0.71 = 0.29 At 99%…

Answered: (a) Find a 99% confidence interval for…

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(a) Find a 99% confidence interval for p.

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter10: Nuclear Physics

Section: Chapter Questions

Problem 18CQ: IB. Wliv is a PET scan more accurate than a SPECT scan?

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Question

A poll is taken in which 355 out of 500 randomly selected voters indicated their preference
for a certain candidate.
(a) Find a 99% confidence interval for p.
<p<
(b) Find the margin of error for this 99% confidence interval for p.
(C) Without doing any calculations, indicate whether the margin of error is larger or smaller or the
same for an 80% confidence interval.
A. larger
B. smaller
C. same

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