A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 768 hours. A random sample of 22 light bulbs has a mean life of 754 hours. Assume the population is normally distributed and the population standard deviation is 63 hours. At a=0.02, do you have enough evidence to reject the manufacturer's claim? Complete parts (a) through (e). ar + VV OD. Ho: H≤754 Ha: >754 (claim) ar E. Ho: μ ≥768 (claim) H₂ μ< 768 (b) Identify the critical value(s). Use technology. a VE Ho: μ>768 Hau≤768 (claim) Zo (Use a comma to separate answers as needed. Round to two decimal places as needed.) 2

A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 768 hours. A random sample of 22 light bulbs has a mean life of 754 hours. Assume the population is normally distributed and the population standard deviation is 63 hours. At a=0.02, do you have enough evidence to reject the manufacturer's claim? Complete parts (a) through (e). ar + VV OD. Ho: H≤754 Ha: >754 (claim) ar E. Ho: μ ≥768 (claim) H₂ μ< 768 (b) Identify the critical value(s). Use technology. a VE Ho: μ>768 Hau≤768 (claim) Zo (Use a comma to separate answers as needed. Round to two decimal places as needed.) 2

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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