\(\overline X\) - \(R\)

≤ 100
    id
    x1
    x2
    x3
    x4
    x5
      \(\overline {\overline X}\)    \(\overline R\)       UCL\(\overline X\)       UCL\(R\)      
      (n) \(\hat \sigma\)       CL\(\overline X\)       CL\(R\)
(k)       LCL\(\overline X\)       LCL\(R\)

<Figure 6.6.2> Data input for \(\overline X\) chart and \(R\) chart using data in Table 6.6.2