Question: x and S control charts are maintained for a certain quality characteristic. The sample size is twelve. After 50 samples, we have x=9810 and s=1350.

x and S control charts are maintained for a certain quality characteristic. The sample size is twelve. After 50 samples, we have x=9810 and s=1350. What is the upper control limit for the S chart? [Select the appropriate range in which your answer falls.] Less than or equal to 7 More than 7 but less than or equal to 12

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