1. A quality control inspector at Midwest Potato Chip Company has taken ten samples with four observations each of the volume of chips in a filled bag. The data is shown in the following table. If the standard deviation of the bagging operation is 0.2 ounces use the data in the table to develop control limits of 3 standard deviations for the bagging operations.

2. An operations manager as a light bulb plant has inspected the number of defective light bulbs in 10 random samples with 30 observations each. Use a p-chart to construct a 3-sigma control chart. Following are the number of defective bulbs. 2 3. Cedar Falls Hotel uses a c-chart to monitor the numb