Using C chart, please 1 Construct the LCL, UCL. 2 Plot your results. 3 Briefly provide with the recommendations based on your results.

To monitor the number of blemishes on a polished surface a company randomly selects 10 units of output from its process and counts the number of blemishes on each unit. The sample results are shown below \begin{tabular}{|r|c|c|c|c|} \hline Sample & Number Defective & c & UCL & LCL \\ \hline 1 & 17 & & & \\ \hline 2 & 19 & & & \\ \hline 3 & 15 & & & \\ \hline 4 & 18 & & & \\ \hline 5 & 16 & & & \\ \hline 6 & 14 & & & \\ \hline 7 & 15 & & & \\ \hline 8 & 16 & & & \\ \hline 9 & 15 & & & \\ \hline 10 & 15 & & & \\ \hline \end{tabular}