1. Sony Electronics announced that their new line of Plasma televisions will last for 60,000 hours. A consumer research group decided to test this announcement. The group randomly selected 50 televisions to test. The data from this sample showed that the mean life of television is 57000 hours, with a standard deviation of 1200 hours. i) Determine the 95% confidence interval for the mean life of television. ii) Does the confidence interval support the announcement of Wilson Electronics? Why?

1. Sony Electronics announced that their new line of Plasma televisions will last for 60,000 hours. A consumer research group decided to test this announcement. The group randomly selected 50 televisions to test. The data from this sample showed that the mean life of television is 57000 hours, with a standard deviation of 1200 hours. i) Determine the 95% confidence interval for the mean life of television. ii) Does the confidence interval support the announcement of Wilson Electronics? Why?

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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