A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtained if she wishes theestimate to be within 0.04 with 99% confidence if(a) she uses a previous estimate of 0.46?(b) she does not use any prior estimates?Click the icon to view the table of critical values.(a) n = (Round up to the nearest integer.) Area in Each TailCitical Value, 2Level of Confidence,(1 - a)- 100%90%95%L962575

It is given that margin of error (E) is 0.04 and the confidence level is 99%.

Answered: A researcher wishes to estimate the…

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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A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtained if she wishes the estimate to be within .06 with 95% confidence if (a) she uses a previous estimate of 0.33?
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A researcher wishes to estimate the percentage of adults who support abolishing the penny What size sample should be obtained if he wishes the estimate to be within 3 percentage points with 95% confidence if (a) he uses a previous estimate of 24% ? (b) he does not use any prior estimates ?
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A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtained if she wishes the estimate to be within 0.04 with 99% confidence if (a) she uses a previous estimate of 0.46? (b) she does not use any prior estimates?