(Situation F) Ten Samples Of $n = 5$ Were Collected to Construct An

question 59

Multiple Choice

(Situation F) Ten samples of $n = 5$ were collected to construct an $\bar { R }$ -chart. The sample means and ranges for the 10 samples are shown below.
$\begin{array}{cccccc}\hline \text { Sample } & \text { Mean } & \text { Range } & \text { Sample } & \text { Mean } & \text { Range } \\\hline 1 & 20.2 & 2.7 & 6 & 20.4 & 1.9 \\2 & 22.4 & 1.8 & 7 & 15.9 & 1.0 \\3 & 21.2 & 1.5 & 8 & 22.3 & 2.1 \\4 & 18.2 & 1.2 & 9 & 20.7 & 1.6 \\5 & 23.2 & 2.4 & 10 & 21.1 & 1.8\end{array}$
-Calculate the upper and lower control limits for the R-chart.

• A) Upper \(= 4.3485\), Lower \(= 0\)
• B) Upper \(= 3.6553\), Lower \(= 0.4014\)
• C) Upper \(= 3.1986\), Lower \(= 0.4014\)
• D) Upper \(= 3.8052\), Lower \(= 0\)

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