Question: A 60-45-15 nodular iron has a 0.2 percent yield strength Sy with a mean of 49.0 kpsi, a standard deviation of 4.2 kpsi, and a

A 60-45-15 nodular iron has a 0.2 percent yield strength Sy with a mean of 49.0 kpsi, a standard deviation of 4.2 kpsi, and a guaranteed yield strength of 33.8 kpsi. What are the Weibull parameters θ and b?

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