I need help with this problem ASAP, please. The lifetime of lightbulbs has a mean of 1500 hours and a standard deviation of 175 hours. A sample of 40lightbulbs is tested. What is the probability that he sample mean life lifetime is between 1490 and 1596hours?If there are two answers, list both answers separated by a comma.

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Answered: The lifetime of lightbulbs has a mean…

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 lifetime of lightbulbs has a mean of 1500 hours and a standard deviation of 175 hours. A sample of 40 lightbulbs is tested. What is the probability that he sample mean life lifetime is between 1490 and 1596 hours? If there are two answers, list both answers separated by a comma.