Use the Given Process Data to Construct a Control Chart $$\begin{array} { l l l l l l l l l l l l } 4 & 7 & 5 & 6 & 8 & 3 & 12 & 4 & 4 & 5 & 6 & 2\end{array}$$

question 158

Essay

Use the given process data to construct a control chart for p. A manufacturer monitors the level_ of defects in the television sets that it produces. Each week, 200 television sets are randomly selected and tested and the number of defects is recorded. The results for 12 consecutive weeks are shown below. $$\begin{array} { l l l l l l l l l l l l } 4 & 7 & 5 & 6 & 8 & 3 & 12 & 4 & 4 & 5 & 6 & 2\end{array}$$