Cartons of Plaster of Paris are supposed to weight exactly 32 oz. Inspectors want to dev


Question: (25 points) Cartons of Plaster of Paris are supposed to weight exactly 32 oz. Inspectors want to develop process control charts. They take ten samples of six boxes and weigh them. Based on the following data, compute the lower and upper control limits for an x-bar and R-chart, draw both control charts, and determine whether the process is in control.

Sample Mean Range
1 33.8 1.1
2 34.6 0.3
3 34.7 0.4
4 34.1 0.7
5 34.2 0.3
6 34.3 0.4
7 33.9 0.5
8 34.1 0.8
9 34.2 0.4
10 34.4 0.3
Price: $2.99
Solution: The answer consists of 3 pages
Solution Format: Word Document

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