A manufacturer of silk inspects each bolt of material at the end of the manufacturing process. When the process is in control, it averages 11 defects per bolt. If a 3- sigma control limit is desired, what is the lower control limit?
A) less than or equal to 0
B) greater than 0 but less than or equal to 1
C) greater than 1 but less than or equal to 2
D) greater than 2

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The Answer of A manufacturer of silk inspects each bolt of material at the end of the manufacturing process. When the process is in control, it averages 11 defects per bolt. If a 3- sigma control limit is desired, what is the lower control limit?
A) less than or equal to 0
B) greater than 0 but less than or equal to 1
C) greater than 1 but less than or equal to 2
D) greater than 2

A Manufacturer of Silk Inspects Each Bolt of Material at the End