A polling firm wants to use a one-sample z interval to estimate what proportion of voters in a country plan on voting for acertain candidate. They want the margin of error to be no more than + 3% at 99% confidence. Determine the smallest samplesize required to obtain the desired margin of error.

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A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A polling firm wants to use a one-sample z interval to estimate what proportion of voters in a country plan on voting for a certain candidate. They want the margin of error to be no more than + 3% at 99% confidence. Determine the smallest sample size required to obtain the desired margin of error.