The Data in the Following Table Represent Time-Study Observations on a New

The data in the following table represent time-study observations on a new operation with three work elements. On the basis of these observations, find the standard time for the process. Assume an 8% allowance factor.
$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text{Observations (times in seconds)}$
$\begin{array}{|c|c|c|c|c|c|}\hline \text { Element } & \text { Performance Rating } & 1 & 2 & 3 & 4 \\\hline 1 & 105 \% & 110.2 & 110.8 & 112.3 & 108.7 \\\hline 2 & 90 \% & 114.7 & 115.7 & 114.8 & 114.2 \\\hline 3 & 115 \% & 109.2 & 109.3 & 109.2 & 108.9 \\\hline\end{array}$

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