Question: Shear block tests on epoxy-repaired timber indicate that the probability distribution of the bond strengths of parallel-grain, mill lumber specimens has a mean of 1,312 psi and a standard deviation of 422 psi. Suppose a sample of 100 epoxy-repaired timber specimens is randomly selected and bond strength of each is determine.

a. Describe the sampling distribution Ÿ, the mean bond strength of the sample of 100 epoxy-repaired timber specimens

b. Compute P (Y ≥ 1,418).

c. If the actual sample mean is computed to be Y = 1,418 what would you infer about the shear block test result?