In a certain type of metal test specimen, the normal

Chapter , Problem 7.6

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In a certain type of metal test specimen, the normal stress on a specimen is known to be functionally related to the shear resistance. A data set of coded experimental measurements on the two variables is given here. (a) Estimate the regression line Y |x = 0 + 1x. (b) Estimate the shear resistance for a normal stress of 24.5. Normal Stress, x Shear Resistance, y 26.8 26.5 25.4 27.3 28.9 24.2 23.6 27.1 27.7 23.6 23.9 25.9 24.7 26.3 28.1 22.5 26.9 21.7 27.4 21.4 22.6 25.8 25.6 24.9

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