Judy Holmes Textiles has decided to use a c-Chart to monitor the number of defects per pair of jeans produced by their manufacturing process. The c-Chart should be constructed using ±3 standard deviations from the mean. The operations manager randomly samples one pair of jeans at 10 successively selected time periods and counts the number of defects on the pair of jeans. Data shown below: TOTAL DEFECTS= 64 Sample: 1 2 3 4 5 6 7 8 9 10 Defects 4 7 67957 10 54 The Lower Control Limit for this Control Chart is?

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A:

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