A random sample of n 8 E-glass fiber test specimens of a
Chapter 7, Problem 7.32(choose chapter or problem)
A random sample of n 8 E-glass fiber test specimens of a certain type yielded a sample mean interfacial shear yield stress of 30.2 and a sample standard deviation of 3.1 (On Interfacial Failure in Notched Unidirectional Glass/Epoxy Composites, J. of Composite Materials, 1985: 276286). Assuming that interfacial shear yield stress is normally distributed, compute a 95% CI for true average stress (as did the authors of the cited article).
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