The Roper poll states that 56% of the 1,021 Americans questioned think that UFOs are real. For each of the following levels of confidence, find the margin of error associated with the sample. (Round your answers to one decimal place.) (a) an 80% level of confidence ± %

The Roper poll states that 56% of the 1,021 Americans questioned think that UFOs are real. For each of the following levels of confidence, find the margin of error associated with the sample. (Round your answers to one decimal place.) (a) an 80% level of confidence ± %

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 9PPS

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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

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(a) an 80% level of confidence
± %

(b) a 98% level of confidence

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