Find the margin of error for estimating the population mean when the sample standard deviation equals 100

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Find the margin of error for estimating the population mean when the sample standard deviation equals 100 for a sample size of 25, using confidence levels 

(i) 95% 

(ii) 99%. 

What is the effect of the choice of confidence level? (You can use Table B in the back to find the appropriate t-scores.)

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Statistics The Art And Science Of Learning From Data

ISBN: 9780321997838

4th Edition

Authors: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg

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