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Data were collected on a quantitative measure with a subgroup size of three observations. Thirty subgroups....

Data were collected on a quantitative measure with a subgroup size of three observations. Thirty subgroups.

                        Xdoublebar=2.33        Rbar=0.80

  1. Determine the Shewhart factors that will be needed if xbar- and R-charts are to be developed.
  2. Compare the upper and lower control limits for the R-charts.
  3. Compute the upper and lower control limits for the xbar-chart.
Math   Statistics-And-Probability   
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