This assignment requires that you submit a report to management assessing this process.

The density of a product is measured every 5 hours and the results of consecutive measurements is provided below. Create and assess control charts to determine if the process is stable and on target assuming a process target of 90. Explain your rationale.

1	89.11
2	90.59
3	91.03
4	89.46
5	89.78
6	90.05
7	90.63
8	90.75
9	89.65
10	90.15
11	88.55
12	90.43
13	91.04
14	88.17
15	91.23
16	90.92
17	88.86
18	90.87
19	90.73
20	89.78

Suppose that the next 10 observations are 90.75, 90.00, 92.00, 92.05, 91.70,90.65, 90.50, 91.00, 92.30, 91.70. How would this affect your analysis? Hint: You may want to consider the first 20 data points as a Phase 1 Study and the subsequent points as part of Phase 2 monitoring.

All of the following criteria must be fully satisfied to achieve full mark:

• Correctly selected
• Control charts selection justified
• Clear and concise statements used, using statistical terms
• Selected control charts properly labelled (graph title, axes, scales),
• Control chart correctly interpreted
• Out-of-control points identified referencing violated tests
• Selected control charts properly labelled (graph title, axes, scales),
• Control chart limits are utilized from phase I data (before adding the extra points)
• Out-of-control points identified referencing violated tests.
• Control chart correctly interpreted
• Issues with the process after point 20 identified
• Future possible actions required to correct the situation discussed.
• Properly using Appendixes to display data and properly referencing it.
• No grammar or typing mistakes
• Statistical terms are properly used