The following table shows the individual measurements for samples taken every 15 minutes starting at 10:00 am to be used in monitoring a process. 10:00 am 2.0 1.8 2.0 1.8 10:15 am 2.0 2.0 2.0 2.0 10:30 am 1.8 1.9 2.1 2.2 10:45 am 2.1 2.1 1.9 1.9 11:00 am 1.6 2.0 2.2 1.7 1. How many measurements are in each sample? 2. Suppose a mean control chart is being used with an upper limit of 2.2 and a lower limit of 1.8. What would be the first point to plot on the control chart