Lifetimes of AAA batteries are approximately normally distributed A manufacturer wants to estimate the standard deviation of the lifetime of the AAA batteries it produces A random sample of 15 AAA batteries produced by this manufacturer lasted a mean of 10 9 hours with a standard deviation of 2 4 ...

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Data Analysis and Decision Making

ISBN: 978-0538476126

4th edition

Authors: Christian Albright, Wayne Winston, Christopher Zappe

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Lifetimes of AAA batteries are approximately normally distributed. A manufacturer wants to estimate the standard deviation...

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Data Analysis and Decision Making

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