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A researcher wishes to estimate the percentage of adults who support abolishing the penny. sample should be obtained if he wishes the estimate to be within 5 percentage points with 95% confidence if (a) he uses a previous estimate of 28%? (b) he does not use any prior estimates? Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) n = (Round up to the nearest integer)

A researcher wishes to estimate the percentage of adults who support abolishing the penny. sample should be obtained if he wishes the estimate to be within 5 percentage points with 95% confidence if (a) he uses a previous estimate of 28%? (b) he does not use any prior estimates? Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) n = (Round up to the nearest integer)

MATLAB: An Introduction with Applications
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 percentage of adults who support abolishing the penny. What size sample should be obtained if he wishes the estimate to be within 5 percentage points with 95% confidence if (a) he uses a previous estimate of 28%? (b) he does not use any prior estimates? Click here to view the standard normal distribution table (page 1) Click here to view the standard normal distribution table (page 2). (a) n = (Round up to the nearest integer)
Transcribed Image Text: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 5 percentage points with 95% confidence if (a) he uses a previous estimate of 28%? (b) he does not use any prior estimates? Click here to view the standard normal distribution table (page 1) Click here to view the standard normal distribution table (page 2). (a) n = (Round up to the nearest integer)
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