A quality control expert at LIFE Batteries wants to test their new batteries. The design engineer claims they have a standard deviation of 77 minutes with a mean life of 551 minutes. If the claim is true, in a sample of 135 batteries, what is the probability that the mean battery life would be greater than 545.6 minutes? Round your answer to four decimal places.
A quality control expert at LIFE Batteries wants to test their new batteries. The design engineer claims they have a standard deviation of 77 minutes with a mean life of 551 minutes. If the claim is true, in a sample of 135 batteries, what is the probability that the mean battery life would be greater than 545.6 minutes? Round your answer to four decimal places.
Managerial Economics: A Problem Solving Approach
5th Edition
ISBN:9781337106665
Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike Shor
Publisher:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike Shor
Chapter17: Making Decisions With Uncertainty
Section: Chapter Questions
Problem 7MC
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A quality control expert at LIFE Batteries wants to test their new batteries. The design engineer claims they have a standard deviation of 77 minutes with a mean life of 551 minutes.
If the claim is true, in a sample of 135 batteries, what is the probability that the mean battery life would be greater than 545.6 minutes? Round your answer to four decimal places.
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