Ten samples of size n = 8 have been collected from a process in statistical control, and the\ndimension of interest has been measured for each part. Th
Ten samples of size n = 8 have been collected from a process in statistical control, and the
\r\ndimension of interest has been measured for each part. The calculated values of x for each sample
\r\nare (mm) 9.22, 9.15, 9.20, 9.28, 9.19, 9.12, 9.20, 9.24, 9.17, and 9.23. The values of R are (mm)
\r\n0.24, 0.17, 0.30, 0.26, 0.26, 0.19, 0.21, 0.32, 0.21, and 0.23, respectively. (a) Determine the values
\r\nof the center, LCL, and UCL for the x and R charts. (b) Construct the control charts and plot the
\r\nsample data on the charts.