Below are tabulated a number of Rockwell G hardness values that were measured on a single steel specimen. Compute (a) the average hardness value and (b) the standard deviation hardness value. 50.5 48.8 48.9 47.1 46.9 46.5 46.6 47.7 48.4 49.7 50.1 50.4   (a)      (b)

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.