Answered: The mean lifetime of a certain brand of…

The mean lifetime of a certain brand of AAA battery is 120 hours with a standard deviation of 15 hours. If the Z-score of a battery is -0.6, how long did the battery last?

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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The mean lifetime of a certain brand of AAA battery is 120 hours with a standard deviation of 15 hours. If the Z-score of a battery is -0.6, how long did the battery last?

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