Question:

# A quality control expert at LIFE batteries wants to test

Last updated: 7/11/2022

A quality control expert at LIFE batteries wants to test their new batteries. The design engineer claims they have a standard deviation of 86 minutes with a mean life of 505 minutes, If the claim is true, in a sample of 120 batteries, what is the probability that the mean battery life would be greater than 523.8 minutes? Round your answer to four decimal places.