Sampling 4 pieces of precision-cut wire (to be used in computer assembly) every hour for the past 24 hours has produced the following results: Based on the sampling done, the control limits for 3 -sigma x chart are (round all intermediate calculations fo three decimal places before proceeding with further calculations): Upper Control Limit (UCL)= inches (round your response to three decimal places). \begin{tabular}{cccc} \hline \begin{tabular}{c} Sample \\ Size, n \end{tabular} & \begin{tabular}{c} Mean Factor, \\ A2 \end{tabular} & \begin{tabular}{c} Upper Range, \\ D4 \end{tabular} & \begin{tabular}{c} Lower Range, \\ D3 \end{tabular} \\ \hline 2 & 1.880 & 3.268 & 0 \\ 3 & 1.023 & 2.574 & 0 \\ 4 & 0.729 & 2.282 & 0 \\ 5 & 0.577 & 2.115 & 0 \\ 6 & 0.483 & 2.004 & 0 \\ 7 & 0.419 & 1.924 & 0.076 \\ 8 & 0.373 & 1.864 & 0.136 \\ 9 & 0.337 & 1.816 & 0.184 \\ 10 & 0.308 & 1.777 & 0.223 \\ 12 & 0.266 & 1.716 & 0.284 \\ \hline \end{tabular}