please seperate each letter!! also can you make it easy to follow and not complex. Thanks so much

there's 6 parts

Ch 9 Homework Problem HWw7 The Tribune Company is a bottling company. One of their processes is a filler. The following data on the measurement of liquid in ounces was collected. Observation 2 3 4 1 Samples 1 20.2 20.1 19.8 19.9 2 19.9 19.9 19.7 20.1 3 19.9 20.1 19.8 20.1 20.0 19.9 19.8 4 19.9 20.1 19.8 20.1 5 19.9 6 19.7 19.6 19.7 19.4 7 19.9 19.9 20.2 20.1 20.1 20.1 19.9 19.8 8 19.7 9 20.0 20.1 19.8 10 19.8 19.9 20.1 19.9 20.1 20.1 19.8 11 19.9 12 19.9 19.4 19.7 19.8 a. Calculate control limits for an x-chart. b. Calculate the control limits for an R-chart. C. Draw the x-chart and plot the samples d. Draw the R-chart and plot the samples e. Is the process in control? f. Since these data were collected, some new employees were hired. A new sample obtained the following readings: 20.6, 20.1, 19.8, 20.4. With this sample is the process in control