Question: A quality inspector took six samples, each with twenty observations, of the weight of a bagging process, in pounds. The sample means and ranges are

A quality inspector took six samples, each with

A quality inspector took six samples, each with twenty observations, of the weight of a bagging process, in pounds. The sample means and ranges are shown below. Sample 1 2 3 Mean 3.55 3.80 3.50 3.60 3.50 3.55 Range 0.55 0.75 0.55 0.51 0.55 0.65 4 5 6 Use this information to obtain a three-sigma control chart (i.e. control limits using z = 3) for the mean weight. Process standard deviation is 0.27. Use that control chart to answer the questions below. Do not round intermediate calculations. Round your final answers to three decimal points. Question 3 (2.5 points) What is the upper control limit? Your Answer: Answer Question 4 (2.5 points) What is the center line? Your Answer: Answer Question 5 (2.5 points) What is the lower control limit? Your Answer: Answer Question 6 (0.5 points) Sample 1 is out of control. True False

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