Figure 13
The dot plot consists of two sections: Total Service Time Before and Total Service Time After. The x-axis is labeled Data and ranges from 4 to 28 for the before section and from 4 to 16 for the after section. Each blue dot represents up to 2 observations. In the Total Service Time Before section, the data points are more dispersed, with a maximum value of 28. In the Total Service Time After section, the data points are less dispersed, with a maximum value of 16. This indicates that the service times are less variable and have a lower maximum after the improvement.Dot plot of total service time before and after the improvement. Source: Authors' own creation