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Tensile strength tests were carried out on two different grades of wire rod resulting in the following data aDoes the data show that the true average strength for the B grade exceeds that for the

Tensile strength tests were carried out on two different grades of wire rod, resulting in the following data. (a) Does the data show that the true average strength for the B grade exceeds that for the A grade by more than 10kg/mm^2? Test the appropriate hypotheses at the level of significance alpha = 0.01. (b) Find the 95% confidence interval for Mu 1 - Mu 2.

Aug 01 2020 View more View Less

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