Mathematics, 06.04.2021 01:00, neon1605

A sample of 12 joint specimens of a particular type gave a sample mean proportional limit stress of 8.55 MPa and a sample standard deviation of 0.76 MPa. (a) Calculate and interpret a 95% lower confidence bound for the true average proportional limit stress of all such joints. (Round your answer to two decimal places.) MPa

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A sample of 12 joint specimens of a particular type gave a sample mean proportional limit stress of...