Solved: A sample of 14 joint specimens of a particular type gave asample mean
Chapter 7, Problem 34(choose chapter or problem)
A sample of 14 joint specimens of a particular type gave asample mean proportional limit stress of 8.48 MPa and asample standard deviation of .79 MPa (Characterization ofBearing Strength Factors in Pegged Timber Connections,J. of Structural Engr., 1997: 326332).a. Calculate and interpret a 95% lower confidence boundfor the true average proportional limit stress of all suchjoints. What, if any, assumptions did you make about thedistribution of proportional limit stress?b. Calculate and interpret a 95% lower prediction bound forthe proportional limit stress of a single joint of this type.
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