Flaws Are Counted on a Standard Steel Plate (Sheet) Determine the Lower and Upper Control Limits for a C-Chart

Essay

Flaws are counted on a standard steel plate (sheet). Each sheet has the exact same dimensions. Ten sheets are selected at random and the number of flaws per sheet is as follows:
$$\begin{array} { | c | c | } \hline \text { Sheet } & \text { Number of Flaws } \\\hline 1 & 3 \\\hline 2 & 1 \\\hline 3 & 3 \\\hline 4 & 0 \\\hline 5 & 2 \\\hline 6 & 2 \\\hline 7 & 0 \\\hline 8 & 1 \\\hline 9 & 1 \\\hline 10 & 2 \\\hline\end{array}$$ Determine the lower and upper control limits for a c-chart.