Follow the instructions in Example of a Variability Chart to produce the results shown in Figure 8.4.
Figure 8.4 Variability Gauge Chart
In Figure 8.4, the Measurement chart shows the range of measurements for each operator by part. Each measurement appears on the chart. Maximum and minimum bars indicate the range of values for each cell, and a cell means bar indicates the median value for each combination of values. The Std Dev chart plots the standard deviation of the measurements taken on each part by operator.