Maurice Tutor

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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 04 Nov 2017 My Price 4.00

Ni-maraging steel

An experiment was performed to compare the fracture toughness of high-purity Ni-maraging steel with commercial-purity steel of the same type. For 32 high-purity specimens, the sample mean toughness and sample standard deviation of toughness were 65.6 and 1.4, respectively, whereas for 32 commercial purity specimens, the sample mean and sample standard deviation were 59.2 and 1.1, respectively. Estimate the difference between true average toughness for the high-purity steel and that for the commercial steel using a lower 95% confidence bound. Does your estimate demonstrate conclusively that this difference exceeds 5? Explain your reasoning.

 

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Maurice Tutor
(5)
Status NEW Posted 04 Nov 2017 09:11 PM My Price 4.00

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