MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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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.
Question

The following summaries of statistical studies give a sample statistic and a margin error. Find the confidence interval and answer any additional questions. 

 

In a survey of 1002 people, 701 which is 70% said that they voted in the most recent presidental election. the margin of error for the survey was 3 percentage points. however acutal voting records show that only 61% of all eligible voters actually did vote. does this necessarily imply that people lied when they answer the survery? explain. 

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