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 0.03 with 90% confidence if(a) she uses a previous estimate of 0.52?(b) she does not use any prior estimates?Click the icon to view the table of critical values.Table of critical values(a) n=(Round up to the nearest integer.)(b) n =(Round up to the nearest integer.)Critical Value, ZęLevel of Confidence,(1 - a)· 100%Area in Each Tail,90%0.051.64595%0.0251.9699%0,0052.575PrintDone

Plug in all the values in the formula, we get Round the value to the nearest integer.

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 0.03 with 90% confidence if (a) she uses a previous estimate of 0.52? (b) she does not use any prior estimates? E Click the icon to view the table of critical values. Table of critical values (a) n = I (Round up to the nearest integer.) (b) n= (Round up to the nearest integer.) Critical Value, Area in Each Tail, Level of Confidence, (1 - a) - 100% 90% 0.05 1645 95% 0.025 196 99% 0.005 2.575 Print Done

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 0.03 with 90% confidence if (a) she uses a previous estimate of 0.52? (b) she does not use any prior estimates? E Click the icon to view the table of critical values. Table of critical values (a) n = I (Round up to the nearest integer.) (b) n= (Round up to the nearest integer.) Critical Value, Area in Each Tail, Level of Confidence, (1 - a) - 100% 90% 0.05 1645 95% 0.025 196 99% 0.005 2.575 Print Done

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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