Applying the Empirical Rule The Acme Company manufactures widgets. The distribution of widget weights is approximately normal with a mean of 54 ounces and a standard deviation of 9 ounces. Use the Empirical Rule to answer the questions below. Sketch the distribution in order to answer these questions. (a) 99.7% of the widget weights lie between  and  (b) What percentage of the widget weights lie between 36 and 81 ounces?  % (c) What percentage of the widget weights lie below 63 ?

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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.