The yield strength of 5 steel specimens was determined using the uniaxial tension test. The mean value of the yield strength is 29 ksi. If the sample standard deviation is 2 ksi, the 95% confidence interval for the yield strength of steel is:  A. (26.5ksi, 31.5ksi) B. (25.7ksi, 31.3ksi) C. (27ksi, 31ksi)

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Test for Determination of Shear Strength

The term shear strength is often associated with the soil. Shear strength is defined as the resistance to the deformation of soil particles due to the continuous action of shear stress. In short, shear strength is the maximum shear stress that a soil can sustain.