=+c) How would the confidence interval change if you had assumed that the standard deviation was known

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=+c) How would the confidence interval change if you had assumed that the standard deviation was known to be $20?

Section 11.6

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Business Statistics Plus Pearson Mylab Statistics With Pearson Etext

ISBN: 978-1292243726

3rd Edition

Authors: Norean R Sharpe ,Richard D De Veaux ,Paul Velleman

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