In tests of a computer component, it is found that the mean time between failures is 920 hours. A modification is made which is supposed to increase reliabilityby increasing the time between failures. Tests on a sample of 36 modified components produce a mean time between failures of 966 hours. Using a 5% level ofsignificance, perform a hypothesis test to determine whether the mean time between failures for the modified components is greater than 920 hours. Assumethat the population standard deviation is 51 hours.H,: u>966 hoursH: u=966 hoursO Test statistic : z= 108.24Critical value : z=2.33Reject the null hypothesis. There is sufficient evidence to support the claim that, forthe modified components, the mean time between failures is greater than 966 hours.H:u= 966 hoursH: µ> 966 hoursO Test statistic : z= 5.41Critical value : z= 1.65Reject the null hypothesis. There is sufficient evidence to support the claim that, forthe modified components, the mean time between failures is greater than 966 hours.Ho: u=920 hoursH: u>920 hoursO Test statistic: z 5.41Critical value : z=1.65Reject the null hypothesis. There is sufficient evidence to support the claim that, forthe modified components, the mean time between failures is greater than 920 hours.H: u> 966 hoursH: u= 966 hoursOTest statistic : z=5.41Critical value:z=2.33Reject the null hypothesis. There is sufficient evidence to support the claim that, forthe modified components, the mean time between failures is greater than 966 hours.

Solution: Given information: n= 36 Sample size x= 966 hours Sample mean μ=920 hours Population…

Answered: In tests of a computer component, it is…

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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