A process that produces mirrors for automobiles is monitored by taking samples of 1500 mirrors and counting
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A process that produces mirrors for automobiles is monitored by taking samples of 1500 mirrors and counting the total number of visual flaws on all the sample mirrors. Let cibe the total number of flaws on the mirrors in the ith sample. For the last 70 samples, the quantity has been calculated.Compute the center line and the 3σ upper and lower control limits for a c chart.
Transcribed Image Text:
70 C; = 876
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