An electrical firm manufactures light bulbs that havea length life with normal distribution, and a standarddeviation of σ = 10 hours. A sample of size n== 100is obtained, and its sample mean is calculated to be330 hours.x =Find the 95% confidence interval for the averagelength life μ.(328.04,331.96)Find the upper 95% bound for the average length lifeμ.331.96notation.☑ invalid intervalFind the lower 95% bound for the average length lifeμ.328.04notation.☑ invalid intervalGive your answer as intervals. Use -∞ and +∞ ifneeded.

To find the 95% confidence interval for the average length life, we'll use the formula for a…

Answered: An electrical firm manufactures light…

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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