A researcher wishes to estimate the proportion of adults who have high-speed internet access. What sample should be obtained if she wishes the estimate to be within 0.01 with 90% confidence if:  a. she uses a previous estimate of 0.36?  b. she does not use any prior estimates?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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A researcher wishes to estimate the proportion of adults who have high-speed internet access. What sample should be obtained if she wishes the estimate to be within 0.01 with 90% confidence if: 

a. she uses a previous estimate of 0.36? 
b. she does not use any prior estimates? 

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