An electrical firm manufactures light bulbs that have a lifetime that is approximately normally distributed with a mean of 750 hours and a standard deviation of 42 hours. Test the hypothesis that µ = 750 hours against the alternative, u +750 hours, if a random sample of 29 bulbs has an average life of 727 hours. Use a P-value in your answer. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Find the test statistic. (Round to two decimal places as needed.)

An electrical firm manufactures light bulbs that have a lifetime that is approximately normally distributed with a mean of 750 hours and a standard deviation of 42 hours. Test the hypothesis that µ = 750 hours against the alternative, u +750 hours, if a random sample of 29 bulbs has an average life of 727 hours. Use a P-value in your answer. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Find the test statistic. (Round to two decimal places as needed.)

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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