Use the Following Data to Prepare the Upper and Lower

question 129

Short Answer

Use the following data to prepare the upper and lower control limits for a mean chart.Each sample contains 3 values. $$\begin{array} { | c | c | c | } \hline \text { Sample } & \text { Mean } & \text { Range } \\\hline 1 & 47 & 5 \\2 & 43 & 13 \\3 & 46 & 10 \\4 & 32 & 20 \\\hline\end{array}$$ Compute the lower and upper control limits.
Lower value = ____________________
Upper value = ____________________

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