An automatic screw machine produces a run of parts with a uniform distribution d =U[0.748, 0.751] in because it was not reset when the diameters

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An automatic screw machine produces a run of parts with a uniform d =U[0.748, 0.751] in because it was not reset when the diameters reached 0.750 in. The square brackets contain range numbers.
(a) Estimate the mean, standard deviation, and PDF of the original production run if the parts are thoroughly mixed.
(b) Using the results of Prob. 20–16, find the new mean, standard deviation, and PDF. Superpose the PDF plots and compare.

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