(d) Find the critical values. (e) Rejection region and conclusion. (f) Interpret the results.
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A dynamic cone pentameter (DCP) is used for measuring material resistance to penetration (mm/blow) as a cone is driven into pavement or subgrade. Suppose that for a particular application it is required that the true average DCP value for a certain type of pavement be less than 30. The pavement will not be used unless there is conclusive evidence that the specification has been met. Suppose that the sample
(d) Find the critical values.
(e) Rejection region and conclusion.
(f) Interpret the results.
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