=+54. The Rockwell hardness of certain metal pins is known to have a mean of 50 and

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=+54. The Rockwell hardness of certain metal pins is known to have a mean of 50 and a standard deviation of 1.5.

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Applied Statistics For Engineers And Scientists

ISBN: 9781133111368

3rd Edition

Authors: Jay L. Devore, Nicholas R. Farnum, Jimmy A. Doi

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